colourmemory.com

Ask a cultural, historical, or material colour question.

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

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

Return perceptual colour metrics: LRV, chroma, hue angle, warmth classification, and illuminant shifts under D65 (6500K), F11 (4000K), and Illuminant A (3000K).

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

Return WCAG 2.1 contrast ratios and AA/AAA pass/fail grades for a foreground hex against a background.

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.

Return live archive status: total colour count, per-archive breakdown, embedding model, search engine state, and API version.

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 hex value, traces that colour's 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.

Score a hex value or palette for cultural sensitivity, symbolic weight, regional taboos, religious associations, and potential misinterpretation across global markets.

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.

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

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.

The flagship commercial endpoint.

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.

The money endpoint.

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.

Complete brand colour intelligence audit in one call.

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

Compact semantic fingerprint for any hex colour.

Generate complete ecommerce product copy for any colour.

Run a data quality audit on any named archive.

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

Explain the provenance of any named archive colour with explicit separation of: documented historical fact, computational hex derivation, and cultural interpretation.

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.