ContrastKit

Overview

ContrastKit is a Model Context Protocol server that helps developers ensure accessibility in their color choices. It performs WCAG color contrast checks, finds the nearest accessible color alternatives, converts CSS colors between formats, and validates palette pairs for compliance.

ContrastKit runs as a remote service hosted at https://contrastkit.mike-tusa.workers.dev/mcp with no authentication required and nothing to install locally. The current release is v0.1.0. Any MCP-compatible AI assistant can call its tools directly during conversations or agent runs.

ContrastKit is listed under Development on mcp.site and integrates with MCP clients including Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed and others across the ecosystem. If you maintain ContrastKit, claim this listing to verify ownership and keep the information current.

Installation

Settings → Connectors → Add custom connector
Name: ContrastKit
URL:  https://contrastkit.mike-tusa.workers.dev/mcp