Design
Audit every color pair in a palette against WCAG 2.1 AA and AAA contrast thresholds and suggest adjustments
Call this tool from your code in three languages.
curl -X POST 'https://api.elysiatools.com/en/api/tools/accessible-color-palette-contrast-checker' \
-H 'Content-Type: application/json' \
-d '{"paletteInput":"brand-primary: #2563EB\nbrand-secondary: #F59E0B\nsurface: #FFFFFF\ntext: #111827","minimumTarget":"aa","includeSelfPairs":false}'Send a POST request with your inputs as JSON. File parameters require a separate upload first.
POST https://api.elysiatools.com/en/api/tools/accessible-color-palette-contrast-checker| Name | Type | Required | Description |
|---|---|---|---|
| paletteInput | textarea | Yes | — |
| minimumTarget | select | No | — |
| includeSelfPairs | checkbox | No | — |
JSON result
{
"key": {...},
"metadata": {
"key": "value"
},
"error": "Error message (optional)",
"message": "Notification message (optional)"
}Add this tool to your Model Context Protocol server so AI agents can list and call it.
Add this block to your MCP client configuration:
{
"mcpServers": {
"elysiatools-accessible-color-palette-contrast-checker": {
"name": "accessible-color-palette-contrast-checker",
"description": "Audit every color pair in a palette against WCAG 2.1 AA and AAA contrast thresholds and suggest adjustments",
"baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=accessible-color-palette-contrast-checker",
"command": "",
"args": [],
"env": {},
"isActive": true,
"type": "sse"
}
}
}After connecting to the SSE endpoint, list the exposed tools:
{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/list"
}Invoke the tool by its id, passing arguments built from its parameters:
{
"jsonrpc": "2.0",
"id": 2,
"method": "tools/call",
"params": {
"name": "accessible-color-palette-contrast-checker",
"arguments": {
"paletteInput": "brand-primary: #2563EB\nbrand-secondary: #F59E0B\nsurface: #FFFFFF\ntext: #111827",
"minimumTarget": "aa",
"includeSelfPairs": false
}
}
}Questions or issues? Contact [email protected]