check_color_contrast

MCP tool from A11ymcp by ronantakizawa

Check if a foreground and background color combination meets WCAG contrast requirements.

How to use it

Project documentation lists check_color_contrast for the A11ymcp MCP server. Add the server to your MCP client (Claude Desktop, Cursor, Windsurf and others), then check which tools your installed version makes available. Tool availability can depend on configuration and credentials. A server handshake does not verify this tool’s behavior. See the full listing for setup details.

Install A11ymcp

$claude mcp add a11y-accessibility -- npx -y a11y-mcp-server

FULL A11YMCP LISTING

Other tools in A11ymcp (5)

check_aria_attributes

Check if ARIA attributes are used correctly in HTML.

check_orientation_lock

Check if content forces a specific orientation.

get_rules

Get information about available accessibility rules with optional filtering. Returns an array of rule objects, each containing ruleId, description, help, helpUrl, and tags.

test_accessibility

Tests a URL for accessibility issues.

test_html_string

Tests an HTML string for accessibility issues.