Traditional color names (Japanese and 10 more cultures) with hex/RGB and sources; name a hex.
Connect Remote server
claude mcp add --transport http color https://color.omikuji.dev/mcp
{
"mcpServers": {
"color": {
"url": "https://color.omikuji.dev/mcp"
}
}
}
{
"servers": {
"color": {
"type": "http",
"url": "https://color.omikuji.dev/mcp"
}
}
}
Settings > Connectors > Add custom connector
URL: https://color.omikuji.dev/mcp
Tools 4 found in our last check
find_colorLook 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.
nearest_colorsGiven 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?".
list_colorsList 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_culturesList the cultures covered, with color counts and categories.
Details
| Endpoint | https://color.omikuji.dev/mcp (Streamable HTTP) |
| First published | 15 Oct 2026 |
| Last updated | 15 Oct 2026 |
| Registry name | dev.omikuji/color |
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