I built an API that stops AI hallucinating colour
A new API called Colour Memory has been developed to help prevent AI from hallucinating colors. It matches hex color codes to named colors and provides a confidence score along with primary source information. This tool aims to enhance the accuracy of color representation in AI applications.
- ▪Colour Memory API matches hex codes to named colors.
- ▪It provides a confidence score and primary source information for each color.
- ▪The API includes guardrails to prevent misrepresentation of color data.
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Story provenance
Attribution is not the same as permission. This drawer separates discovery metadata, excerpts, WeSearch-generated summaries, reuse status, and whether the publisher receives the visit. Nothing here claims a legal grant the publisher has not made.
Record
| Original publisher | Colourmemory |
| Canonical URL | https://colourmemory.com/start |
| Publication time | Wed, 03 Jun 2026 14:24:42 +0000 |
| Retrieval time | 2026-06-03T14:27:09.556Z |
| Last seen | 2026-06-03T14:27:09.556Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | 10_-CeWQy40C |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
2 Tool 1 of 3 query.hex Match any hex to the archive. Returns the nearest named colour with its primary source, confidence score, claim_role, and do_not_say guardrails. This is the core of what Colour Memory does. curl Copy curl -X POST https://api.colourmemory.com/query/hex \ -H "X-Api-Key: cm_demo_public_quickstart" \ -H "Content-Type: application/json" \ -d '{"hex": "#D4A829", "n_results": 1}' Response — key fields nameSong Gold Sycee archiveChina primary_sourceNorthern Song Dynasty monetary records, 960–1127 confidence0.92 claim_strengthA — Direct institutional record claim_roleanchor do_not_say Do not describe this hex as spectrophotometrically measured — values are computed from material descriptions.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at Colourmemory.
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