colourmemory.com

Ask a cultural, historical, or material colour question.

Extract dominant colours from a photograph using Colour Memory's proprietary k-means++ algorithm.

Find the closest named archive colours to a hex value using CIEDE2000 perceptual distance.

Generate a complete interior specification from 2-8 hex values.

Returns raw perceptual metrics (LRV, chroma, hue angle, warmth, undertone) for a single colour.

Return complementary, triadic, analogous, and split-complementary harmonies matched to named archive colours.

Evaluates contrast for a single foreground/background pair.

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.

Convert a palette WCAG matrix into actionable design-system rules.

Return every developer token format for a hex value: CSS variable, kebab-case, camelCase, PascalCase, Tailwind class, TypeScript const, SCSS variable.

Generate light-mode and dark-mode role maps from a palette.

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.

Full-text keyword search across all archive colour names and notes.

Assess 2-5 colours as a combination for a given context (UI, data viz, fashion, interior, print, branding).

Like palette_concept but with archive filtering and relevance controls.

Generate a premium branded PDF specification sheet from a palette of archive entries.

Full palette quality audit.

Complete brand colour system in one call.

Complete brand asset pack.

Return simulated hex values for protanopia, deuteranopia, and tritanopia using the Brettel-Vienot-Mollon model.

Find the nearest named colour in commercial paint systems including Farrow and Ball and Little Greene.

Look up a named colour and return its hex, archive, provenance, and cultural notes.

Return a live inventory of all active endpoints and MCP tools.

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).

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.

Generate a historically grounded colour palette from a cultural concept or theme.

Simulate perceptually modelled subtractive mixing of two colours in CIE Lab space (not RGB screen blending).

Given a concept or colour name, traces its documented appearances across cultures and centuries in chronological order.

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.

Deep perceptual and semantic comparison between any two hex values.

Cultural risk assessment for a hex value or palette (symbolic weight, regional taboos, religious associations, market flags).

One-call compound tool.

Upload a portrait photo and receive a full personal colour analysis.

The colour question every stylist gets asked: does this bag go with this outfit?

Generate a complete interior colour specification from a concept or brief.

Generate a complete multi-room house colour scheme from a single archive.

Send a palette of up to 8 slots, locking some with hex values and leaving others empty.

Generate a perceptually smooth gradient between 2-5 archive anchor colours.

Map any list of hex values into a target archive using CIEDE2000 nearest-neighbour matching.

Find the most surprising archive colour for a concept and generate a memorable one-liner subverting the obvious expectation.

Evaluate a hex colour for a specific use case, market, and medium.

Evaluate a palette of 2-8 hex values for a use case, market, and medium.

Generate a complete colour direction package for another AI agent or image generation model.

Single-call commercial colour strategy report.

One-call complete archive research package for a document, PDF, or editorial brief.

Given a legacy palette, generate an archive-grounded premium support system.

Given a list of themes, report which are well-evidenced in the archive and which are under-evidenced or missing.

Check a list of colour entries for anachronism risk.

Single-call forensic colour brief generator.

Colour Memory's proprietary semantic metric.

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.

Can this brand own this colour against these competitors in this market?

One-call complete brand colour intelligence report.

Fast, fully deterministic brand colour audit.

Verify that an AI-generated image actually used the colours specified in an agent_brief call.

Canonical single-call colour truth object.

Batch version of colour_passport.

Compact semantic fingerprint for a single hex colour.

Generate complete ecommerce product copy for any colour.

Generate a hook sentence, three-sentence story, tweet, image prompt, and follow-up questions for any hex colour.

Explains the provenance of a named archive colour: documented fact vs computational derivation vs cultural interpretation, with confidence and citation format.

Assess whether a hex colour can be safely specified for a physical application.

Refine an existing palette using natural language feedback.

For any named archive colour, return historical variants, lighter and darker versions with archive matches, and cultural siblings.

Export a palette to CSS custom properties, Figma design tokens, Tailwind config, ASE hex list, or JSON.

Deep perceptual, cultural, and commercial comparison between two palettes.

Generate archive-grounded colour names for up to 40 product SKUs.

Generate a complete WCAG-compliant UI state palette from a brand hex.

Generate memorable, archive-verified colour names for any hex value.

Generate a clean, text-free PNG swatch image from hex colours.

Analyse a palette of hex colours against the Colour Memory archive.

Upload an image to Colour Memory for ephemeral processing.

Extract dominant colours from an image using k-means++ clustering.

Compound endpoint: one image in, full creative brief out.

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.

List durable house projects owned by the calling API key, most recently updated first.

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.

Soft-delete a durable house project you own.

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.

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 cannot legitimately claim (documented archive anchor vs analogue vs original brand colour).

Resolves a brand_job_ref returned by brand_guideline_specify when its race-to-complete window elapsed before generation finished.

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).

Renders a client-facing brand colour standard from an existing brand_ref.

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).

Deterministic tool-routing lookup -- not an LLM call, always instant, never consumes archive or LLM credit.