Color Contrast Checker — WCAG Compliance Tool

Test Color Contrast for Accessibility Compliance

Ensure your web content is readable for everyone. ToolMateX’s Color Contrast Checker lets you test foreground and background color combinations in real time to verify WCAG AA and AAA compliance.

Live Ratio Calculation

As you choose your text and background colors, the contrast ratio updates instantly. The result tells you whether your combination passes WCAG guidelines for both small and large text.

• ✅ Instant 4.5:1 and 7:1 checks
• ✅ Pass/fail status for AA and AAA
• ✅ Distinction between normal and large text

Visual Preview of Color Pairing

In addition to the numeric result, you get a live preview of how the selected colors look together. This includes:

• Normal-sized text preview
• Large text (18px+) preview
• Real-time color styling

This ensures that your combination isn’t just mathematically accessible — it looks great too.

Use Cases

• 🎨 Designers verifying UI color combinations
• 🧑‍💻 Frontend developers testing theme contrast
• 📄 Creating accessible infographics and charts
• 📝 Copywriters checking readability of call-to-actions
• 📱 Mobile app designers validating light/dark modes

How It Works

1. Select a foreground (text) color
2. Select a background color
3. View the calculated contrast ratio
4. Check WCAG AA/AAA pass/fail status
5. Preview text styling directly

Why Use ToolMateX?

ToolMateX is a fast, client-side toolkit built for designers and developers. This contrast checker is:

• 🔒 100% private — no server requests
• ⚡ Lightning-fast and responsive
• 🎯 WCAG-compliant and accurate
• 🖥️ Works great in light and dark mode design workflows
• 🆓 Free forever