# Traditional Colors

> Traditional color names (Japanese and 10 more cultures) with hex/RGB and sources; name a hex.

- name: dev.omikuji/color
- version: 1.0.0
- connection class: R0 (autonomous)
- trust: 81/100 flags: no-repository
- quality: 89/100 (new)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/dev.omikuji%2Fcolor
- tools: https://api.protogrid.dev/v1/servers/dev.omikuji%2Fcolor/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "color": {
      "type": "http",
      "url": "https://color.omikuji.dev/mcp"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 96
- freshness: 100
- provenance: 55
- drivers: +dns-namespace +website +reachable +uptime-89% +updated-5d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 89/100 (new)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 100 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 4 of 4 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 552 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: n/a (weight 15)

- n/a `stability.changes`, `stability.rug_pull`: tool history recorded for 5 of the 7 days needed

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 4, about 552 tokens to load them all
- tool set hash: 6719ab51fbe90050d0d8553bf17a611b
- tools last changed: 2026-10-15T13:38:45.530Z
- badge: [![protogrid quality](https://protogrid.dev/badge/dev.omikuji/color.svg)](https://protogrid.dev/servers/dev.omikuji/color)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-10-15 `list_cultures` changed (annotations)
- 2026-10-15 `list_colors` changed (annotations)
- 2026-10-15 `nearest_colors` changed (annotations)
- 2026-10-15 `find_color` changed (annotations)

Full history: https://api.protogrid.dev/v1/servers/dev.omikuji%2Fcolor/changes

## Remotes

- https://color.omikuji.dev/mcp (streamable-http, auth none, reachable true, uptime30d 0.8947368)

## Packages

_none_

## Tools (4)

- `find_color`: Look up traditional colors by name and get hex/RGB with sources. Accepts Japanese kanji (浅葱色), reading in hiragana or katakana (あさぎいろ), English (Asagi, Prussian Blue), with or without 色. Exact name matches come first.
- `list_colors`: List colors filtered by culture, category (e.g. 青系, 赤系), era (e.g. 平安, 江戸) or tag. At most 50 per call.
- `list_cultures`: List the cultures covered, with color counts and categories.
- `nearest_colors`: Given a hex code, return the closest traditional colors by CIEDE2000 color difference (delta_e). Use it to answer "what is this color called in Japanese tradition?".