• PASS
  • FAIL
  • WARN
  • HUMAN

How to audit design system palettes with your AI

Connect your color palette to your AI client to run accessibility checks instantly. It handles the math for contrast ratios so you don't have to.

Ask AI about this page

Short answer

How can I check my brand colors for accessibility?

Your AI uses the Color Contrast Checker to test color combinations against WCAG guidelines for different text sizes and formats. You'll get a clear breakdown of which pairs pass or fail. This covers everything from hex codes to specific UI components.

Where every issue lands.

The audit outcomes

The AI processes your palette and organizes the results into these categories.

PASS

Compliant pairs

The AI identifies color combinations that meet WCAG standards for both normal and large text. You get a list of safe colors to use together.

FAIL

Accessibility violations

The AI flags combinations that fall below the required contrast ratios. It specifies exactly which colors are causing the issue.

WARN

Edge case warnings

The AI highlights colors that pass for large text but fail for smaller body text. This helps you avoid subtle usability problems.

HUMAN

Design decisions

The AI identifies where colors are too close to pass. You decide whether to adjust the brand colors or change the text weight.

The workflow

What your AI does when the palette arrives.

The AI takes your raw color data and runs it through a series of mathematical checks.

  1. Ingest colors

    Your AI reads the hex codes or color arrays you provide in your prompt or design file.

    check_color_contrast

  2. Calculate ratios

    The AI runs the contrast math for every foreground and background combination you've specified.

    check_color_contrast

  3. Test sizes

    The tool checks if the colors work for standard body text versus larger headings.

    check_color_contrast

  4. Report results

    The AI summarizes the passing and failing pairs into a readable list for your review.

    check_color_contrast

Try it

Copy these to start.

Use these prompts to kick off an audit.

Starting points

Replace the bracketed text with your actual hex codes or file paths.

colord Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_hc2RovnBSudbXvkpfLpH4ef2sc9X9Pt3zfhUEHq9/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — colord capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "color-contrast-checker-alternative-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_hc2RovnBSudbXvkpfLpH4ef2sc9X9Pt3zfhUEHq9/mcp"
    }
  }
}
Copy into chat04

  • Check the contrast for these hex codes: #FFFFFF and #000000.

  • Audit my brand palette from this Figma file for WCAG AA compliance.

  • Test these colors for large text accessibility: #333333 and #F5F5F5.

  • Run a contrast check on my primary brand colors listed in this JSON file.

  • Claude
  • ChatGPT
  • Cursor
  • VS Code
  • Windsurf
  • Claude Code
  • JetBrains
  • Cline

Start here

Connect Color Contrast Checker once, then ask.

Just click to connect the MCP to your preferred client. Your credentials stay encrypted and you can start auditing immediately.

Connect Color Contrast Checker to your AI

FAQ

How this task behaves

  • 01

    Can the AI fix my colors for me?

    No. The AI identifies the failures, but you must manually choose the new color values to maintain brand integrity.

  • 02

    Does it check for color blindness?

    The tool focuses on contrast ratios. It does not simulate specific types of color vision deficiency.

  • 03

    Can I upload a whole design system file?

    Yes, if your AI client can read the file, the AI can pass the color data to the tool.

  • 04

    Will the AI change my Figma files?

    No. The AI only reads the color data to perform the check. It cannot write or modify your design files.

  • 05

    Does it support RGB or HSL?

    The tool works with hex codes, but your AI client can convert RGB or HSL to hex before running the check.

  • More questions about Color Contrast Checker? The Connector page answers them. See everything the Color Contrast Checker Connector can do

Connect colord to Claude, Cursor, ChatGPT & more