Design

HSV to LAB Converter

Convert HSV color values to LAB for professional color management with alpha channel support

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Quick start

Call this tool from your code in three languages.

cURL

curl -X POST 'https://api.elysiatools.com/en/api/tools/hsv-to-lab-converter' \
  -H 'Content-Type: application/json' \
  -d '{"hsv":"Enter HSV values, one per line:\nhsv(0,100%,100%)\nhsva(0,100%,100%,0.5)\nhsb(120,100%,100%)\nhsba(120,100%,100%,0.5)\n0,100,100\n0,100,100,0.5\nH:0 S:100% V:100%\nH:0 S:100% V:100% A:0.5","format":"lab","alphaHandling":"white","customBackground":"#FFFFFF"}'

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/hsv-to-lab-converter

Parameters

Name	Type	Required	Description
hsv	textarea	Yes	—
format	select	Yes	—
alphaHandling	select	Yes	—
customBackground	color	No	Custom background color for alpha compositing (used when Custom Background is selected)

Response format

Text result

JSON

{
  "result": "Processed text content",
  "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-hsv-to-lab-converter": {
      "name": "hsv-to-lab-converter",
      "description": "Convert HSV color values to LAB for professional color management with alpha channel support",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=hsv-to-lab-converter",
      "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": "hsv-to-lab-converter",
    "arguments": {
  "hsv": "Enter HSV values, one per line:\nhsv(0,100%,100%)\nhsva(0,100%,100%,0.5)\nhsb(120,100%,100%)\nhsba(120,100%,100%,0.5)\n0,100,100\n0,100,100,0.5\nH:0 S:100% V:100%\nH:0 S:100% V:100% A:0.5",
  "format": "lab",
  "alphaHandling": "white",
  "customBackground": "#FFFFFF"
}
  }
}

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]

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