How to Use the Color Contrast Checker MCP in Windsurf

Stop guessing if your UI is readable. Windsurf uses this MCP server to audit WCAG contrast ratios in real-time.

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Connect Color Contrast Checker MCP to Windsurf

Create your Vinkius account to connect Color Contrast Checker to Windsurf 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 with Windsurf

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Windsurf audits text against backgrounds

Cascade pulls your current CSS color variables and passes them to `check_color_contrast` to verify compliance. It flags issues before you even commit your code. Stop manually checking hex codes. Let Windsurf run `check_black_text_on_bg` or `check_white_text_on_bg` to confirm your design passes accessibility standards.

Surface contrast testing for Windsurf

Windsurf tests your components against standard surface levels using `check_dark_mode_surface` and `check_light_mode_surface`. You get instant feedback on whether your text pops against a dark backdrop. This MCP server removes the guesswork from dark mode implementations. Cascade handles the heavy lifting while you focus on the layout.

Direct text contrast validation

Use `check_text_on_pure_black` or `check_text_on_pure_white` to see if your color palette holds up. Windsurf runs these checks automatically when you modify your stylesheet. Errors in readability show up in the agent's plan immediately. You can fix the contrast before the design hits a browser.

Setup guide

Set up Color Contrast Checker MCP in Windsurf

Prerequisites

Windsurf IDE installed (macOS, Windows, or Linux)
Active Vinkius subscription with a valid endpoint token

1

Open MCP configuration

Click the Cascade assistant icon in the sidebar, then click the hammer icon (🔨) at the top of the panel. Select "Configure" to open ~/.codeium/windsurf/mcp_config.json.
2

Add the Color Contrast Checker 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

Refresh MCPs

Go back to the hammer icon (🔨) in Cascade and click "Refresh". Windsurf will detect the new server. No full restart is needed — the connection is hot-reloaded.
4

Verify in Cascade

Start a new Cascade conversation and ask something like "Show my Color Contrast Checker payment history." If connected, Cascade will call the Color Contrast Checker tools directly. You will see a green dot next to the server name in the MCP panel.

mcp_config.json

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

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Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by WCAG Color Contrast. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

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Common questions about Color Contrast Checker MCP in Windsurf

Add the server to your settings and let Cascade discover the tools. Once connected, tell the agent to audit your current CSS file for contrast issues.

Yes. Cascade can iterate through your style files and run the contrast tools on every color pair it finds.

It does. If your colors are defined as variables, the agent pulls those values and checks them against the background surface.

The tool returns the specific ratio found. You can then ask the agent to suggest a compliant color that fits your brand palette.

Yes. The server only receives the specific hex codes you explicitly pass to the tools. No project files, credentials, or source code leave your local machine.

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