Text & utilities / FREE ONLINE TOOL
WCAG 2.1 Color Contrast Ratio Checker (AA & AAA)
Check text and background colour contrast.
- 1Choose text colour
- 2Choose background colour
- 3Read the contrast rating
Color Contrast Ratio Checker
Free · No signup
Bharti Infotech Typography Sample
Contrast Ratio: 14.2:1 (AAA Pass)
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ABOUT THIS TOOL
Why use this tool?
Poor color contrast causes eye strain and high bounce rates, especially on mobile devices outdoors. Meeting WCAG AA/AAA standards ensures your site is accessible to every prospective client.
Frequently Asked Questions
What is the minimum contrast ratio required for WCAG 2.1 AA compliance?
WCAG Level AA requires a contrast ratio of at least 4.5:1 for standard body text and 3:1 for large typography (18pt or 14pt bold).
What is required for WCAG AAA compliance?
Level AAA requires an enhanced contrast ratio of at least 7:1 for normal body text and 4.5:1 for large text headings.
Why is color contrast especially critical for mobile users in India?
Millions of users browse websites outdoors under bright sunlight on budget smartphones. Adequate contrast ensures effortless legibility under all ambient light conditions.