Color Contrast Checker – WCAG Accessibility
Check color contrast ratio for accessibility. WCAG AA/AAA compliance checker.
Tool
Enter your values and get results instantly.
Sample Text
Contrast: 3.68:1
3.7:1
Ratio
❌
AA
❌
AAA
How to Use
- 1Pick text and background colors
- 2See contrast ratio
- 3Check WCAG AA/AAA rating
Benefits
Frequently Asked Questions
What is a good contrast ratio?
For normal text, WCAG AA requires a ratio of at least 4.5:1. For large text (18px+ bold), 3:1 is sufficient. AAA requires 7:1 for normal text.
Why is color contrast important?
Good contrast makes text readable for everyone, especially people with visual impairments. It is also a ranking factor in Google's accessibility evaluation.
Can I check contrast for my website?
Yes – pick your text color and background color to instantly see if your design meets accessibility standards.
What is the maximum contrast ratio?
The maximum is 21:1 (black text on white background). The minimum is 1:1 (same color for both).
Is this tool free to use?
Yes – completely free for designers and developers who want to create accessible websites.