Design

Color Lighten/Darken

Adjust color brightness and create variations with lighten/darken controls

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/color-lighten-darken' \
  -H 'Content-Type: application/json' \
  -d '{"baseColor":"#4A90E2","adjustmentType":"lighten","adjustmentValue":20,"steps":10,"includeComplementary":true,"preserveSaturation":true}'

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/color-lighten-darken

Parameters

Name	Type	Required	Description
baseColor	color	Yes	—
adjustmentType	select	Yes	—
adjustmentValue	range	No	Adjustment amount for color brightness (-100% to +100%)
steps	number	No	Only applies when "Gradient (Full range)" is selected. Controls how many colors to generate in the gradient sequence (2-20 steps)
includeComplementary	checkbox	No

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-color-lighten-darken": {
      "name": "color-lighten-darken",
      "description": "Adjust color brightness and create variations with lighten/darken controls",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=color-lighten-darken",
      "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": "color-lighten-darken",
    "arguments": {
  "baseColor": "#4A90E2",
  "adjustmentType": "lighten",
  "adjustmentValue": 20,
  "steps": 10,
  "includeComplementary": true,
  "preserveSaturation": true
}
  }
}

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