Color Contrast Checker
Check if your color combinations meet WCAG accessibility standards
Live Preview
The quick brown fox jumps over the lazy dog.
Heading Example
Small text for detailed reading experience.
Text Link🎨 Foreground (Text)
🖼️ Background
Contrast Ratio
Excellent contrast
💡 Suggestions to Improve Contrast
About WCAG Contrast
📊 Contrast Ratio
Measures the difference in brightness between two colors. Ranges from 1:1 to 21:1.
✅ WCAG AA
Minimum accessibility level. Requires 4.5:1 for normal text, 3:1 for large text.
✅ WCAG AAA
Enhanced accessibility. Requires 7:1 for normal text, 4.5:1 for large text.
♿ Why It Matters
Good contrast ensures readability for users with visual impairments.
Common Use Cases for Contrast Checking
🎨 Web Design & Development
Ensure your website text meets WCAG 2.2 AA standards (4.5:1 for normal text, 3:1 for large text). Check button text, link colors, placeholder text, and error messages against their backgrounds. Use our Web Color Accessibility Guide for a complete walkthrough.
📱 Mobile App UI
Mobile screens have unique contrast challenges — glare, small text, and varying brightness. Test your dark mode and light mode color pairs separately. Learn more in Mobile Color Design Guide.
♿ Accessibility Compliance
Meeting accessibility standards is not optional — it's a legal requirement in many jurisdictions. WCAG 2.2 AA is the minimum. Test foreground/background pairs, check color blindness safety, and ensure inclusive design with our Accessibility Testing Guide.
📊 Data Visualization
Charts and graphs need careful contrast planning. Text labels, data points, and legends must all be readable against chart backgrounds and each other. See Color in Data Visualization for best practices.