How to Use the Color Contrast Checker Alternative MCP in Claude Code

Claude Code validates your design system colors using this MCP Server for terminal-based accessibility testing.

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Connect Color Contrast Checker Alternative MCP to Claude Code

Create your Vinkius account to connect Color Contrast Checker Alternative to Claude Code and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup Color Contrast Checker Alternative with Claude Code

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Claude Code performs headless contrast checks

Run `check_color_contrast` directly from your terminal session. It takes your color inputs and returns the luminance ratio based on WCAG 2.1 standards. This allows you to pipe accessibility checks into your CLI workflows. It’s perfect for verifying design tokens in a headless environment.

Terminal-based contrast testing for Claude Code

Claude Code uses this server to audit colors without needing a browser. It calculates the contrast ratio and returns compliance data in plain text. You get the same accuracy as a GUI tool, but inside your script. It is built for developers who prefer the command line.

Automated accessibility for Claude Code

Integrate color checks into your CI/CD pipelines. Claude Code runs the contrast tool to ensure your builds meet accessibility targets every time. It flags non-compliant colors before they reach production. You save time by catching these issues early.

Setup guide

Set up Color Contrast Checker Alternative MCP in Claude Code

Prerequisites

Claude Code CLI installed (npm install -g @anthropic-ai/claude-code)
Active Vinkius subscription with a valid endpoint token

1

Run the add command

Open your terminal and run the command shown on the right. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com. Use --scope user to make it available across all projects.
2

Verify the connection

Start a Claude Code session and type /mcp to list connected servers. You should see color-contrast-checker-alternative-mcp with a green status indicator.
3

Start using tools

Ask Claude Code something like "Check my latest Color Contrast Checker Alternative transactions." It will automatically discover and invoke the available Color Contrast Checker Alternative tools.

Terminal

claude mcp add --transport http color-contrast-checker-alternative-mcp https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

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Prerequisites

Claude Code CLI installed
Active Vinkius subscription with a valid endpoint token

1

Open the config file

Create or edit .mcp.json in your project root for project-level scope, or ~/.claude.json for user-level scope.
2

Add the Color Contrast Checker Alternative MCP

Paste the JSON snippet shown on the right into the mcpServers object. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Restart Claude Code

Start a new Claude Code session. Type /mcp to confirm the server is connected. The tools will be automatically available in your conversation.

.mcp.json

{
  "mcpServers": {
    "color-contrast-checker-alternative-mcp": {
      "type": "url",
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Get your connection token →

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Common questions about Color Contrast Checker Alternative MCP in Claude Code

Yes. Connect the server via the CLI and Claude Code can call the tool in your scripts. It handles the math for you.

It works in headless environments where you can't run a browser. It gives you the raw data you need to automate accessibility audits.

You can script a loop that checks multiple color pairs at once. Claude Code processes each one and outputs the compliance status.

Run the list command in your terminal. It shows the tool is ready for your input.

None. The server is ephemeral and only processes the specific color values you provide during a tool call. No data persists.

Use it with your favorite AI tools

Connect this server to Cursor, Claude, VS Code, and more.

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