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Traditional Colors

by omikuji.dev · remote · no sign-in to list tools · v1.0.0 · published by dev.omikuji

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

Changes · 1
CompareRegistry entry

4 tools: 1 change things and 3 only read.

Scanned Oct 21, 2026

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http color https://color.omikuji.dev/mcp

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

4 tools

Changes things 1Claude Code: ask
  • nearest_colorsGiven a hex code, return the closest traditional colors by CIEDE2000 color difference (delta_e).No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    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?".

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
    • title: Name a hex color
Only reads 3Claude Code: allow
  • find_colorLook up traditional colors by name and get hex/RGB with sources.No findings

    Why it is in this group

    • The name "find_color" says "find": a word for reading.
    Description, as the server wrote it
    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.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
    • title: Find a color by name
  • list_colorsList colors filtered by culture, category (e.g.No findings

    Why it is in this group

    • The name "list_colors" says "list": a word for reading.
    Description, as the server wrote it
    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.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
    • title: Browse colors
  • list_culturesList the cultures covered, with color counts and categories.No findings

    Why it is in this group

    • The name "list_cultures" says "list": a word for reading.
    Description, as the server wrote it
    List the cultures covered, with color counts and categories.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
    • title: List cultures

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http color https://color.omikuji.dev/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__color__find_color",
      "mcp__color__list_colors",
      "mcp__color__list_cultures"
    ],
    "ask": [
      "mcp__color__nearest_colors"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as color. Review it before you use it.