Design

CSS Color Name Resolver

Resolve any hex color to its nearest CSS named color with true CIEDE2000 ΔE distance, then browse the whole color family it belongs to.

html· HTML resultOpen tool

Quick start

Call this tool from your code in three languages.

cURL

curl -X POST 'https://api.elysiatools.com/en/api/tools/css-color-name-resolver' \
  -H 'Content-Type: application/json' \
  -d '{"color":"#f4a460","metric":"ciede2000","mode":"nearest","matchCount":8}'

API reference

Send a POST request with your inputs as JSON. File parameters require a separate upload first.

Endpoint

HTTP

POST https://api.elysiatools.com/en/api/tools/css-color-name-resolver

Parameters

Name	Type	Required	Description
color	text	Yes	—
metric	select	No	—
mode	select	No	—
matchCount	number	No	—

Response format

HTML result

JSON

{
  "result": "<div>Processed HTML content</div>",
  "error": "Error message (optional)",
  "message": "Notification message (optional)",
  "metadata": {
    "key": "value"
  }
}

MCP integration

Add this tool to your Model Context Protocol server so AI agents can list and call it.

Server configuration

Add this block to your MCP client configuration:

mcp.json

{
  "mcpServers": {
    "elysiatools-css-color-name-resolver": {
      "name": "css-color-name-resolver",
      "description": "Resolve any hex color to its nearest CSS named color with true CIEDE2000 ΔE distance, then browse the whole color family it belongs to.",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=css-color-name-resolver",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

List available tools

After connecting to the SSE endpoint, list the exposed tools:

tools/list

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/list"
}

Call this tool

Invoke the tool by its id, passing arguments built from its parameters:

tools/call

{
  "jsonrpc": "2.0",
  "id": 2,
  "method": "tools/call",
  "params": {
    "name": "css-color-name-resolver",
    "arguments": {
  "color": "#f4a460",
  "metric": "ciede2000",
  "mode": "nearest",
  "matchCount": 8
}
  }
}

Chain multiple tools in one session with a comma-separated toolId list, e.g. /mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp (max 20).

Questions or issues? Contact [email protected]

Browse tools Open tool

curl -X POST 'https://api.elysiatools.com/en/api/tools/css-color-name-resolver' \ -H 'Content-Type: application/json' \ -d '{"color":"#f4a460","metric":"ciede2000","mode":"nearest","matchCount":8}'

Name

Type

Required

Description

color

text

Yes

—

metric

select

—

mode

select

—

matchCount

number

—

{ "mcpServers": { "elysiatools-css-color-name-resolver": { "name": "css-color-name-resolver", "description": "Resolve any hex color to its nearest CSS named color with true CIEDE2000 ΔE distance, then browse the whole color family it belongs to.", "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=css-color-name-resolver", "command": "", "args": [], "env": {}, "isActive": true, "type": "sse" } } }

{ "jsonrpc": "2.0", "id": 2, "method": "tools/call", "params": { "name": "css-color-name-resolver", "arguments": { "color": "#f4a460", "metric": "ciede2000", "mode": "nearest", "matchCount": 8 } } }