Developers
Build on stable color IDs.
Search the Registry, retrieve canonical identities and resolve supported representations through one versioned web contract.
Web API
Small surface. Stable contract.
Search
GET /api/v1/colors?q=blue&limit=24Identity
GET /api/v1/colors/N12073sRGB
GET /api/v1/resolve/N12073?target=srgbDisplay-P3
GET /api/v1/resolve/N12073?target=display-p3FOGRA51
GET /api/v1/resolve/N12073?target=fogra51FOGRA52
GET /api/v1/resolve/N12073?target=fogra52The hosted API is an implementation gateway around Protocol 1.0. The sealed Protocol package remains the reference source for the contract.
Example
GET /api/v1/resolve/N12073?target=display-p3{
"nuance_id": "N12073",
"target": "display-p3",
"representation": "color(display-p3 …)",
"canonical_identity": {
"Lab_D50_2deg": [ … ]
}
}Identity contract
N1AAAWCanonical ID grammar
2,385Current identities
0–2,384Compact Token v1
R4Current source
Machine-readable contract
OpenAPI.
The platform publishes its own OpenAPI document so integrations can distinguish hosted endpoints from the static package layout.
Open web OpenAPI →