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Color Contrast Checker

Instant contrast ratio with WCAG AA/AAA results.

Color Contrast Checker

Foreground
Background

Contrast Ratio

17.74:1
Higher ratio means better readability
Normal Text
AAPass
AAAPass
Large Text
AAPass
AAAPass

Preview

Readable Sample Title
This is sample text for checking contrast readability.

About This Tool

This contrast checker is designed for accessibility and readability evaluation. Pick a foreground and background color, and it calculates the contrast ratio with WCAG 2.1 AA/AAA results for normal and large text. A live preview helps you verify whether the combination works for web, mobile, and brand guidelines.

Features

  • 📊 Real-time Ratio: Instantly shows contrast ratio updates
  • ✅ WCAG Coverage: AA/AAA checks for normal and large text
  • 🌓 Quick Swap: Swap foreground and background colors instantly
  • 👁️ Live Preview: Verify readability with real text samples
  • 🎯 Design Ready: Great for UI design and brand reviews
  • 🛡️ Local Processing: Everything runs in your browser

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