WebAIM Contrast Checker

WCAG color contrast accessibility tool

⭐ 4.6/5 (3800 reviews)

About WebAIM Contrast Checker

WebAIM's Contrast Checker evaluates the contrast ratio between foreground and background colors for WCAG 2.0/2.1 accessibility compliance.

Key Features

  • WCAG 2.0 contrast evaluation
  • AA and AAA compliance levels
  • Normal and large text checking
  • Real-time color adjustment
  • Hex color input
  • Lightness slider for adjustment

✅ Pros

  • Free and essential
  • Industry-standard tool
  • Simple and reliable
  • Quick accessibility checks

❌ Cons

  • Very basic tool
  • No palette generation
  • Single pair comparison only
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