Koskamo

contrast-checker-mcp

A community-driven Model Context Protocol server that enables AI assistants to verify WCAG 2.1 accessibility compliance by computing contrast ratios between colors. It supports alpha transparency, provides pass/fail results for AA and AAA levels, and suggests accessible replacement colors while maintaining hue proximity.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

contrast-checker-mcp logo, by ogSINGHCommunity listingLocal stdioSource reviewed; not executedPublished by ogSINGH
Vendor documentation

What you can do with it

  • Check contrast ratio between two colors for WCAG 2.1 compliance
  • Suggest accessible replacement colors for failing pairs
  • Parse color strings into hex, RGB, and HSL formats

Source and maintenance

Community listingRegistry 1.0.1
mcp-registry: io.github.ogSINGH/contrast-checker-mcp@1.0.1Source repository
Maintenance checked

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

contrast-checker-mcp 1.0.1

npm
contrast-checker-mcp package definition
{
  "version": "1.0.1",
  "transport": "stdio",
  "identifier": "contrast-checker-mcp",
  "registryType": "npm"
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

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Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.
Cursor configuration
{
  "mcpServers": {
    "contrast-checker-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "contrast-checker-mcp@1.0.1"
      ]
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "contrast-checker-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "contrast-checker-mcp@1.0.1"
      ]
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.
VS Code configuration
{
  "servers": {
    "contrast-checker-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "contrast-checker-mcp@1.0.1"
      ]
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.
Claude Desktop configuration
{
  "mcpServers": {
    "contrast-checker-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "contrast-checker-mcp@1.0.1"
      ]
    }
  }
}

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