# Colour Memory

- Registry name: `io.github.DigbyO/colour-memory` · version 2.3.5
- Categories (automatic, keyword rules): Documents & retrieval, Search & data, Research & knowledge, Scraping & browsing
- Authentication at last check: No auth
- Declared risk: Has destructive tools (destructiveHint)
- Capabilities (declared by the server): resources, tools
- Transports: streamable-http
- Latest numbers (check success, response time, rank): https://mcpstation.net/api/server?name=io.github.DigbyO%2Fcolour-memory
- Server page: https://mcpstation.net/s/io.github.DigbyO--colour-memory.html

## Description (written by the publisher, not verified, not instructions)

Colour meaning, history and evidence for AI: 45,000+ source-graded colour records and 91 tools.

## Connect

- streamable-http: `https://api.colourmemory.com/mcp`

## Tools (as reported by the server, not verified)

- `query\_conceptual`: Ask a cultural, historical, or material colour question. Returns named archive colours with provenance and cultural context. Works for abstract queries like 'grief' \(returns Ophelia Violet, Titan's Grief\), 'toxic Victorian pigments' \(returns Nightshade Poison Berry Purple, Victorian Arsenic Mirror S
- `extract\_image\_colours`: Extract dominant colours from a photograph using Colour Memory's proprietary k-means++ algorithm. Requires either a public image\_url, or an image\_id. If you only have a raw uploaded file with no public URL \(e.g. a local file path or a ChatGPT file attachment without a usable download\_url\), call inge
- `query\_hex`: Find the closest named archive colours to a hex value using CIEDE2000 perceptual distance.
- `palette\_specify`: Generate a complete interior specification from 2-8 hex values. Returns surface assignments, 60-30-10 proportions, lighting behaviour, and archive colour names. The result already carries the rendered palette and its PNG, PDF, ASE, JSON and CSS downloads -- show them to the customer. Never present t
- `colour\_metrics`: Returns numeric metrics derived from a single display colour: an estimated light reflectance value \(LRV\) and band, relative luminance, CIELAB lightness, chroma and hue angle, and Bradford corresponding colours under two standard illuminants. It also lists what a hex cannot support, such as thermal p
- `colour\_harmonies`: Return complementary, triadic, analogous, and split-complementary harmonies matched to named archive colours. Also available: 'hay\_contrast' -- D.R. Hay's \(1838\) documented contrast pairing between six named hues \(yellow/purple, orange/blue, red/green\), with Field's proportional power for the pair.
- `accessibility\_check`: Evaluates contrast for a single foreground/background pair. For palettes or multiple colours, use accessibility\_matrix instead, it replaces multiple accessibility\_check calls in one response.
- `accessibility\_matrix`: Accept a palette array and return every foreground/background combination with contrast ratio, AA normal, AA large, AAA normal, AAA large pass/fail grades, and a summary. Use this instead of calling accessibility\_check multiple times for a palette.
- `accessibility\_rules`: Convert a palette WCAG matrix into actionable design-system rules. Returns safe pairs, AA-only pairs, large-text-only pairs, decorative-only pairs, best text colour per background, and component usage rules. Deterministic, no LLM cost.
- `colour\_slugs`: Return every developer token format for a hex value: CSS variable, kebab-case, camelCase, PascalCase, Tailwind class, TypeScript const, SCSS variable. Archive-grounded name source with dE2000 distance.
- `palette\_light\_dark`: Generate light-mode and dark-mode role maps from a palette. Analyses LRV, assigns background/surface/text/accent roles for each mode, checks body text contrast safety, and flags missing neutrals. The result already carries the rendered palette and its PNG, PDF, ASE, JSON and CSS downloads -- show th
- `accessibility\_font`: Given a background hex and a palette of candidate foreground colours, return them ranked by contrast ratio with WCAG grades and specific recommendations for body text, large text, and UI components.
- `archive\_search`: Full-text keyword search across all archive colour names and notes. Find colours by name fragment, material, cultural reference, pigment type, or historical period. Complements conceptual embedding search with exact keyword matching. Examples: 'cerulean' \(28 matches, e.g. Bourton Cerulean\), 'Prussia
- `colour\_combination`: Assess 2-5 colours as a combination for a given context \(UI, data viz, fashion, interior, print, branding\). Returns harmony type, clash warnings, contrast summary, and specific deployment rules for the context.
- `palette\_strict`: Like palette\_concept but with archive filtering and relevance controls. Use allowed\_archives to restrict results to specific cultural traditions e.g. \['Japan'\] for Japanese only. Use min\_relevance to filter weak concept matches. Fixes cross-archive drift when cultural specificity matters. The result
- `archive\_report\_document`: Create a designed, full-colour Word \(.docx\) report from Colour Memory records. Use this whenever the user asks for a document, report, write-up, handout or Word file built from archive findings, instead of writing a plain document yourself. Pass the records by the record\_id or slug exactly as archiv
- `palette\_pdf`: Generate a premium branded PDF specification sheet from a palette of archive entries. Returns a downloadable PDF with full-bleed colour panels, archive names, provenance notes, RAL nearest match, LRV, chroma, WCAG contrast data, and Colour Memory branding. Use this to create client deliverables, spe
- `palette\_audit`: Full palette quality audit. Scores on accessibility, cultural risk, tonal balance, colour diversity, and archive naming strength. Returns overall score 0-100, grade, and prioritised fix list. Enterprise quality gate -- use before shipping any palette. Deterministic, no LLM cost. The result already c
- `brand\_system`: Complete brand colour system in one call. Returns colour roles with archive names, light and dark mode role maps, typography guidance, usage rules per colour, design tokens \(CSS, Tailwind, Figma\), and citation cards. Deterministic. No LLM cost. The result already carries the rendered palette and its
- `brand\_asset\_pack`: Complete brand asset pack. Returns CSS variables, Tailwind config, Figma tokens JSON, citation cards, and a Markdown brand guide. Everything a brand team needs to ship. Deterministic. No LLM cost.
- `accessibility\_simulate`: Return simulated hex values for full-severity protanopia, deuteranopia and tritanopia only, using the Machado, Oliveira & Fernandes \(2009\) model \(severity 1.0, linear sRGB\), with a flag when a simulated colour had to be clipped to sRGB. Anomalous trichromacy and partial severities are not simulated.
- `colour\_match\_paint`: Find the nearest named colour in commercial paint systems including Farrow and Ball and Little Greene.
- `colour\_card`: Look up a named colour and return its hex, archive, provenance, and cultural notes.
- `meta\_capabilities`: Return a live inventory of all active endpoints and MCP tools. Use this first to discover what the API can do before making calls. Returns tool count, endpoint list, MCP-exposed tools, and usage notes. Deterministic -- no LLM cost.
- `system\_status`: Zero-argument diagnostic call: returns exactly what build is live right now \(build\_sha, schema\_version, schema\_hash, archive\_revision, tool\_count, generated\_at, server\_environment\). Use this to confirm you're seeing the current deployed schema -- e.g. if a tool you expect \(like house\_specify\) seems
- `colour\_story`: Given a hex value, returns a rich narrative about that colour's cultural journey — where it has appeared in history, what it has meant to different civilisations, and what archive names it carries. Essential for image generation prompts, brand storytelling, and creative briefs. Example: '\#DC143C' re
- `palette\_concept`: Generate a historically grounded colour palette from a cultural concept or theme. Returns 4-6 coordinated archive colours with hex values, proportions, and provenance. Examples: 'Victorian mourning', 'Ottoman court', 'Japanese wabi-sabi', 'Scandinavian winter', 'West African kente', 'Renaissance Flo
- `colour\_mix`: Simulate perceptually modelled subtractive mixing of two colours in CIE Lab space \(not RGB screen blending\). Returns the resulting mixed hex value and its nearest archive match with cultural context. Uses CIE Lab subtractive model for perceptual accuracy. Example: mixing Prussian Blue and Yellow Och
- `colour\_timeline`: Given a concept or colour name, traces its documented appearances across cultures and centuries in chronological order. Returns a dated sequence of archive entries showing when and where the colour appeared, with primary sources. Use for historical research, provenance chains, and understanding why
- `image\_palette`: Upload an image \(base64 encoded\) and extract its dominant colour palette, with each colour matched to its nearest named archive entry with full cultural provenance. Uses K-means++ extraction; sRGB pixels are read as D65 CIELAB for matching. Returns up to 5 dominant colours, each with archive name, c
- `colour\_compare`: Deep perceptual and semantic comparison between any two hex values. Returns quantified differences in LRV, chroma, hue angle, warmth, and CIEDE2000 distance, plus cultural context on both — which is more authoritative, more saturated, more stable under different illuminants, and what each has histor
- `colour\_cultural\_risk`: Cultural risk assessment for a hex value or palette \(symbolic weight, regional taboos, religious associations, market flags\). This is one component of colour\_passport for single colours. Use colour\_passport for a general profile; call this directly for palette-level risk checks or when cultural risk
- `design\_session`: One-call compound tool. Submit a concept, medium, audience, and constraints — receive a complete design package: historically grounded palette, cultural narrative, commercial paint matches, WCAG accessibility check, illuminant behaviour, and a ready-made image generation prompt. Replaces chaining qu
- `image\_personal`: Upload a portrait photo and receive a full personal colour analysis. Determines your seasonal type \(Spring, Summer, Autumn, or Winter\), colour depth \(light, medium, or deep\), and undertone \(warm, cool, or neutral\). Returns a curated palette of archive colours that genuinely suit you — each with full
- `style\_match`: The colour question every stylist gets asked: does this bag go with this outfit? Submit your outfit items as hex values with labels \(dress, bag, shoes, coat, belt, scarf, etc.\) and receive a verdict on what works, what clashes, what is missing, and what to add. Pairs are judged on hue relationship a
- `interior\_specify`: Generate a complete interior colour specification from a concept or brief. Input a room concept, type, and style — receive a professionally structured colour scheme with 60/30/10 surface assignments, archive colour names with full cultural provenance, Farrow and Ball and Little Greene paint matches,
- `house\_specify`: Generate a complete multi-room house colour scheme from a single archive. Where the retrieved evidence supports it, rooms are grouped by documented provenance \(same object, same pattern colourway, same source citation, same designer, same period+institution\); where it does not, they are grouped by p
- `palette\_generate`: Send a palette of up to 12 slots, locking some with hex values and leaving others empty. Empty slots are filled with the nearest CIEDE2000 archive match, interpolated from the locked anchors. Optional archive filter restricts fills to one archive. Returns full citation — name, archive, primary sourc
- `palette\_gradient`: Generate a perceptually smooth gradient between 2-5 archive anchor colours. Each interpolated stop snaps to the nearest real archive colour by CIEDE2000. Anchor stops are kept true to their source. Choose linear \(physically accurate Lab interpolation\) or chroma\_preserved \(LCh interpolation, short-ar
- `palette\_translate`: Map any list of hex values into a target archive using CIEDE2000 nearest-neighbour matching. Each input hex is matched to the closest named colour in the chosen archive, with a delta-e relevance band \(exact / close / approximate / loose\) and full provenance. Use to translate a client's paint colours
- `archive\_cliche`: Find the most surprising archive colour for a concept and generate a memorable one-liner subverting the obvious expectation. Supply a concept \(e.g. 'love', 'grief', 'luxury', 'power'\) and optionally the expected colour \(e.g. 'red' for love\). The archive finds the contradiction and Claude writes the
- `colour\_verdict`: Evaluate a hex colour for a specific use case, market, and medium. Returns a decisive verdict: use\_with\_confidence, use\_with\_caution, or avoid. Includes strengths, risks, avoid-if scenarios, and better alternatives where needed. Backed by CIEDE2000 archive matching and Claude cultural intelligence.
- `palette\_verdict`: Evaluate a palette of 2-8 hex values for a use case, market, and medium. Returns a verdict \(strong / strong\_with\_adjustment / weak / avoid\), a score 0-100, the role of each colour, the single biggest weakness, and a concrete suggestion for what to add to fix it. Each colour is matched to the nearest
- `agent\_brief`: Generate a complete colour direction package for another AI agent or image generation model. Fetches a historically grounded archive palette from the concept, then produces: an agent brief \(colour direction in prose\), colour tokens with hex values and roles, a model-specific image generation prompt,
- `colour\_strategy`: Single-call commercial colour strategy report. Combines archive grounding, verdict, brand fit, market risk, category cliche check, material behaviour, copy hooks, and usage rules. Input: hex + brand\_context \(category, positioning, audience, channels\) + constraints \(avoid, must\_work\_on\) + markets + m
- `archive\_report\_brief`: One-call complete archive research package for a document, PDF, or editorial brief. Input: title, audience, themes, archives to draw from, things to avoid, number of colours. Output: ranked colour cards with full provenance, story order, source confidence flags, pull quote, CTA line, CSS tokens, ima
- `palette\_heritage`: Given a legacy palette, generate an archive-grounded premium support system. For each existing colour: identifies its historical archive anchor, names it, and scores its provenance confidence. Detects palette gaps and fills them from the archive. Returns full palette with roles, confidence scores, C
- `archive\_coverage\_gap`: Given a list of themes, report which are well-evidenced in the archive and which are under-evidenced or missing. Returns a coverage matrix: for each theme, entries found, coverage grade \(strong/moderate/weak/missing\), best match with claim strength, and what source type would be needed to improve co
- `archive\_cultural\_anachronism`: Check a list of colour entries for anachronism risk. Detects whether the primary source date falls outside the requested period, whether the archive is a known modern source \(RacingSilks, FootballStrips\), and returns a period\_relevance score and safe phrasing. Essential for historical documents: pre
- `session\_brief`: Single-call forensic colour brief generator. Runs coverage gap analysis, pulls best archive colours, checks for anachronisms, scores claim roles \(anchor/support/analogue/provocation/reject\), auto-rejects stubs, generates editorial argument, act structure, pull quote, closing line, and image prompt v
- `index\_resonance`: Colour Memory's proprietary semantic metric. Score how tightly the material origin of a colour aligns with its social consequence. 1.00 = material and consequence are indistinguishable \(blood as prognosis, ash as finality\). 0.80 = institution mediates the colour \(paint as deterrence, flag as authori
- `archive\_evidence\_gap`: Given a hex value and a proposed claim about it, return whether the archive supports that claim, what is missing, what kind of source would be needed, and safe agent wording. This is Colour Memory's anti-hallucination endpoint. It turns the absence of evidence into a forensic finding rather than a g
- `brand\_collision`: Can this brand own this colour against these competitors in this market? Input: brand hex, brand name, competitor hexes and names, market, region. Returns CIEDE2000 distance to each competitor, archive context for each colour, a distinctiveness score \(0-100\), an ownership verdict \(strong/viable/cont
- `brand\_report`: One-call complete brand colour intelligence report. Input: hex + brand context + markets + medium + product type. Output: archive anchor, cliche contradiction, colour DNA, strategy verdict, commercial signals, market reading per market, usage rules, palette roles, ecommerce copy, memory hooks, Insta
- `brand\_audit`: Fast, fully deterministic brand colour audit. Accepts a palette array plus market, use\_case, medium and brand\_category. COMPUTED SYNCHRONOUSLY, no model call of any kind: colour roles with archive names, the full WCAG accessibility matrix, cultural risk per colour, CSS variables, Tailwind config, de
- `agent\_verify`: Verify that an AI-generated image actually used the colours specified in an agent\_brief call. Supply the generated image \(URL or base64\) and the target palette from agent\_brief colour\_tokens. Returns a fidelity score 0-100, dE2000 distance per colour, match quality per colour \(accurate/acceptable/dr
- `colour\_passport`: Canonical single-call colour truth object. Returns everything known about a hex value: colour science \(Lab, LCh, hue, chroma, depth, temperature, LRV\), archive anchor with dE2000, claim\_strength, do\_not\_say and evidence grade, hex provenance \(status, confidence, spectrophotometric flag\), physics \(il
- `colour\_passports`: Batch version of colour\_passport. Submit up to 20 hex values in one call. Returns a full Colour Passport for each unique hex: colour science, archive anchor, evidence grade, do\_not\_say constraints, hex provenance, accessibility, and physics. Deduplicates hex values automatically. Use for multi-colou
- `colour\_dna`: Compact semantic fingerprint for a single hex colour. This is one component of colour\_passport. Use colour\_passport for a general colour profile; use this only when the user explicitly wants the fingerprint format alone. The result already carries the rendered palette and its PNG, PDF, ASE, JSON and
- `ecommerce\_copy`: Generate complete ecommerce product copy for any colour. Input: hex + product type + tone + channel. Output: colour name, product title, short description, long description, SEO title, meta description, alt text, Instagram caption, and cross-sell suggestion. Every piece of copy is grounded in archiv
- `colour\_hooks`: Generate a hook sentence, three-sentence story, tweet, image prompt, and follow-up questions for any hex colour. Backed by the nearest archive colour's cultural provenance. Tunable by audience \(general public, designers, historians, children\) and tone \(dinner party, academic, social media, brand cop
- `archive\_provenance`: Explains the provenance of a named archive colour: documented fact vs computational derivation vs cultural interpretation, with confidence and citation format. This is one component of colour\_passport, but also a standalone research tool for deep provenance work \(museum, documentary, editorial\). Use
- `colour\_forensics`: Assess whether a hex colour can be safely specified for a physical application. Returns: specification\_safe verdict \(yes / conditional / avoid\), risks, required actions, light behaviour under three illuminants \(north daylight, warm artificial, direct sun\), substrate-specific notes, and a recommended
- `palette\_iterate`: Refine an existing palette using natural language feedback. Submit your current palette and feedback such as more melancholic, too corporate add warmth, or better for Gen Z luxury. Returns a refined palette with archive grounding and change rationale. The result already carries the rendered palette
- `colour\_variants`: For any named archive colour, return historical variants, lighter and darker versions with archive matches, and cultural siblings. Essential for designers exploring around a colour. The result already carries the rendered palette and its PNG, PDF, ASE, JSON and CSS downloads -- show them to the cust
- `palette\_export`: Export a palette to CSS custom properties, Figma design tokens, Tailwind config, ASE hex list, or JSON. Each colour is automatically named from the archive. Embeds Colour Memory directly into design workflows.
- `palette\_compare`: Deep perceptual, cultural, and commercial comparison between two palettes. Returns timelessness scores, commercial strength, cultural depth, emotional difference, and a winner verdict for the stated use case. The result already carries the rendered palette and its PNG, PDF, ASE, JSON and CSS downloa
- `ecommerce\_namer`: Generate archive-grounded colour names for up to 40 product SKUs. Input: list of hex values, product category, brand name, naming style. Output: for each hex -- archive name, source citation, one-line product description, dE2000 match distance, match quality, and confidence score. Every name is arch
- `ui\_states`: Generate a complete WCAG-compliant UI state palette from a brand hex. Returns colours for: brand, hover, active, disabled, focus ring, success, warning, error, info, surface subtle, surface strong. All states computed for contrast against your background colour. Returns hex, contrast ratio, WCAG gra
- `colour\_namer`: Generate memorable, archive-verified colour names for any hex value. Choose from naming styles: geographical, poetic, material, literary, botanical, industrial, or mixed. Every name is grounded in a real archive source. The core of the Shopify product naming use case.
- `palette\_swatch`: Generate a clean, text-free PNG swatch image from hex colours. Returns a URL to the PNG. Use for Midjourney --sref style references or design mood boards. Supports photo-proportional weights from palette extraction, equal distribution, grid layout, a true smooth LCh-interpolated gradient \(no hard co
- `palette\_analyse`: Analyse a palette of hex colours against the Colour Memory archive. For each colour returns the nearest named archive entry with cultural name, source, claim\_strength \(A-E\), do\_not\_say guardrails, and alternatives when confidence is low. Palette-level deduplication ensures no two colours map to the
- `ingest\_image`: Upload an image to Colour Memory for ephemeral processing. Returns image\_id valid 5 minutes. Pass image\_id to palette\_extract or image\_brief. Use for any image over 50 KB.
- `palette\_extract`: Extract dominant colours from an image using k-means++ clustering. Accepts a public image URL or base64-encoded image. Returns hex values with proportional weights sorted by luminance. Optionally runs palette\_analyse on the results. Use this instead of image\_palette when you need hex values with pro
- `image\_brief`: Compound endpoint: one image in, full creative brief out. Extracts dominant colours, matches them to the Colour Memory archive with coherent cultural naming, understands the scene, identifies the style period, suggests product directions by category \(textiles, interiors, fashion\), generates an image
- `project\_get`: Retrieve summary metadata for a durable house project you own -- title, project type, current version number, schema/archive revision, created/updated timestamps, and the content hash of the requested version. Requires an API key; the project must belong to the calling key. Does NOT return the full
- `project\_list`: List durable house projects owned by the calling API key, most recently updated first. Anonymous \(keyless\) calls always return an empty list -- temporary anonymous projects are never listable, only resolvable directly by their house\_ref. Requires an API key.
- `project\_versions`: List every stored version of a durable house project you own, oldest first, with each version's content hash, build/schema/archive revision, and creation time. Version 1 is always immutable and always present. Earlier versions remain renderable via palette\_pdf's project\_version input even after a ne
- `project\_delete`: Soft-delete a durable house project you own. Idempotent -- deleting an already-deleted, unknown, or not-owned project\_id returns the same successful-shaped response either way, and never discloses which case occurred. Version rows are never physically erased. Once deleted, a project can no longer be
- `project\_export`: Export the same house-flagship content palette\_pdf renders as a genuinely editable Word document or Excel workbook -- for a client who needs to annotate the scheme, or a contractor building a materials/procurement schedule from it. Accepts exactly one of house\_ref or project\_id -- an inline house ob
- `brand\_guideline\_specify`: Generates the case for a brand's colours, not just the colours themselves: three genuinely different, archive-grounded candidate palettes from a brand brief, each scored for distinctiveness against named competitors, checked for accessibility, and labelled with exactly what each colour can and canno
- `brand\_guideline\_status`: Resolves a brand\_job\_ref returned by brand\_guideline\_specify when its race-to-complete window elapsed before generation finished. Read-only, in-process lookup -- never re-runs generation. Returns \{"status": "processing"\} if still running, \{"status": "complete", "brand\_ref": ..., "project\_id": ..., "
- `brand\_guideline\_select`: Records which brand\_guideline\_specify candidate was chosen, which colours should be locked for future iteration, and which claims should be suppressed -- produces a revised brand\_ref \(same reference, a new version underneath it, exactly like a versioned house\_ref\). No accounts or reviewer states yet
- `brand\_guideline\_pdf`: Renders a client-facing brand colour standard from an existing brand\_ref. The document covers the direction carried forward and its assessment, the colour system in proportion, the argument for the palette, packaging and digital application, a full pairwise WCAG accessibility matrix computed upstrea
- `brand\_guideline\_claims`: Resolves claim\_id values \(returned inline on every colour by brand\_guideline\_specify and brand\_guideline\_select\) into their full claim record: source title/locator/citation, the exact permitted claim text, do\_not\_say restrictions, and claim\_role \(anchor/analogue/reject\). Read-only -- reads the alrea
- `render\_colour\_result`: Show a finished colour result to the customer AS COLOUR. Call this last, once the palette, house scheme, brand system or audit you are going to hand over has been decided -- it presents what you already have and chooses nothing. Do not call it for a single contrast figure, a colour history question
- `palette\_finalize`: Package a palette YOU HAVE ALREADY CHOSEN into a professional, visible, downloadable deliverable. Call this ONCE, after you have decided the final colours for the customer -- it verifies and packages your decision and returns the palette image plus PNG, SVG, PDF, ASE, JSON and CSS. It does not searc
- `tool\_guide`: Deterministic tool-routing lookup -- not an LLM call, always instant, never consumes archive or LLM credit. Give it a goal in plain words \(e.g. 'I have a brand colour and want to check it against competitors', 'I want to paint a whole house', 'I have a photo and want the colours from it'\) and it ret
- `historical\_colour\_query`: Ask a question about how historical colour authorities actually reasoned, and get evidence with provenance rather than a summary. Covers seven validated source builds -- Jennings \(paint recipes, 1902\), Bradley \(rotating-disc apparatus, 1895\), Vanderpoel \(quantified object analyses, 1902\), Beaumont \(
- `colour\_relationships`: What is this archive record connected to, and why? One-hop lookup over Colour Memory's stored relationship graph -- today populated for PigmentLineage, whose 348 design\_combination nodes are Wada's 1933 Dictionary of Color Combinations plates. Returns edges in separate blocks by relationship\_class s
- `why\_connected`: Are these two specific archive records connected -- and if so, exactly why? Traces the real path between them through Colour Memory's stored relationship graph \(e.g. two Wada colours that share membership in the same published combination\) and returns the actual path, not just a yes/no. States plain
- `vanderpoel\_pairing`: Emily Noyes Vanderpoel's documented 'good' dyad/triad hue groupings \(Color Problems, 1902, Plate XXXVI 'Good Dyads or Pairs' and Plate XXXVII 'Good Triads'\), served from the build artefacts vanderpoel\_dyads.json and vanderpoel\_triads.json. Snaps an input hex to the nearest of Vanderpoel's eleven rea

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