PaintColorHQ Color Match

PaintColorHQ — Cross-Brand Paint Color Match (MCP server)

A hosted Model Context Protocol server that finds the closest real, purchasable paint colors across 13 brands for any hex value, scored with CIEDE2000 (Delta-E) over 26,000+ colors.

No install, no API key. It's a remote server — point any MCP client at the endpoint.

https://www.paintcolorhq.com/api/mcp

Transport: stateless Streamable HTTP. Auth: none.

Tools

Three tools. An agent holding a color name calls find_paint_color for its hex, then match_paint_color for the equivalents in other brands.

find_paint_color

Look up a paint color by name, number or both, optionally with the brand in the query.

Argument	Required	Description
query	yes	Name and/or number, e.g. Agreeable Gray, SW 7029, HC-154, Repose Gray sherwin williams.
brand	no	Restrict to one brand slug from list_brands.
limit	no	Number of colors, 1–10 (default 5).

Returns brand, color name, color number, hex, availability (current, retired or discontinued) and a link to the color's page.

find_paint_color { "query": "SW 7029" }
→ 1. Agreeable Gray — Sherwin-Williams 7029 (#d1cbc1)

list_brands

No arguments. The 13 brands with the slug the other tools take, the brand name and its number of colors.

match_paint_color

Find the closest cross-brand paint color equivalents for a hex value.

Argument	Required	Description
hex	yes	6-digit hex, with or without # (e.g. 7F9B8E).
brand	no	Restrict to one brand slug (sherwin-williams, benjamin-moore, behr, valspar, ppg, dunn-edwards, …).
limit	no	Number of cross-brand matches, 1–10 (default 10).

Returns a readable summary plus structuredContent — for each match: brand, color name, color number, hex, a closeness label, the Delta-E, and a link to the color's page. Answers questions like "what's the Behr equivalent of Sherwin-Williams Repose Gray?"

Example

match_paint_color { "hex": "7F9B8E", "limit": 3 }
→ 1. Sioux Falls — Benjamin Moore 705 (#80968f) — Very similar
  2. Eucalyptus — Behr QE-44 (#8c9f97) — Very similar
  3. Phoenix Tears — Valspar 8003-35D (#8da898) — Very similar

Connect

Claude Code

claude mcp add --transport http paintcolorhq https://www.paintcolorhq.com/api/mcp

Clients that accept a remote URL (Claude Desktop connectors, Cursor, etc.)

{
  "mcpServers": {
    "paintcolorhq": {
      "type": "http",
      "url": "https://www.paintcolorhq.com/api/mcp"
    }
  }
}

stdio-only clients (via mcp-remote)

{
  "mcpServers": {
    "paintcolorhq": {
      "command": "npx",
      "args": ["mcp-remote", "https://www.paintcolorhq.com/api/mcp"]
    }
  }
}

Verify

npx @modelcontextprotocol/inspector
# Transport: Streamable HTTP → URL: https://www.paintcolorhq.com/api/mcp → Connect → Tools

# Or a raw round-trip:
curl -s https://www.paintcolorhq.com/api/mcp -H 'content-type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"match_paint_color","arguments":{"hex":"7F9B8E"}}}'

How the matching works

Every color is converted to CIE LAB space, and the server computes the CIEDE2000 Delta-E — the perceptual color-difference standard used in paint and coatings manufacturing — between your color and 26,000+ catalog colors across 13 brands, returning the closest in each. A screen match can still read differently on a wall under your lighting, so confirm a final choice with a physical sample.

Source & links

• Server source lives in the main site repo: pcameron80/paintcolorhq → src/app/api/mcp/route.ts (docs: docs/mcp-server.md)
• Human docs: https://www.paintcolorhq.com/api
• Free REST endpoint (no key): https://www.paintcolorhq.com/api/color-match?hex=7F9B8E
• Free embeddable widget: https://www.paintcolorhq.com/embed
• Paid tier (batch + color-science fields) on RapidAPI

License

MIT — see LICENSE. Paint color names and numbers are trademarks of their respective manufacturers; this project is not affiliated with or endorsed by any paint brand.