Contrast Checker: WCAG Color Accessibility Compliance Tool

Accessible design isn't optional — it's essential. WCAG 2.1 requires minimum contrast ratios between text and background colors (4.5:1 for normal text, 3:1 for large text). Our checker tells you if your colors pass AA and AAA standards.

How to Use Contrast Checker

• 1.

  Enter foreground (text) color

• 2.

  Enter background color

• 3.

  View the contrast ratio

• 4.

  See pass/fail status for WCAG AA and AAA levels

Key Features

• Calculates exact contrast ratio
• WCAG 2.1 AA and AAA level assessment
• Tests normal text and large text separately
• Color picker for easy selection
• Suggestions for better contrast if failing

When to Use This Tool

• •

  Designing accessible websites

• •

  Auditing existing site colors

• •

  Meeting legal accessibility requirements

• •

  Choosing readable text/background combinations

Frequently Asked Questions