WCAG Color Contrast & Accessibility Checker
Test text and background color combinations for WCAG 2.1 AA (4.5:1) and AAA (7:1) accessibility compliance.
- 100% free
- Private in browser
- No signup
- No watermarks
The quick brown fox jumps over the lazy dog.
This sample text renders the exact live contrast ratio against the chosen background.
Contrast Ratio
17.9 : 1
AA Normal Text
PASS (4.5:1)
AA Large Text
PASS (3.0:1)
AAA Enhanced
PASS (7.0:1)
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About WCAG Color Contrast & Accessibility Checker
Test text and background color combinations for WCAG 2.1 AA (4.5:1) and AAA (7:1) accessibility compliance. Use this free client-side tool on TheToolss with zero installation and complete privacy.
How to use WCAG Color Contrast & Accessibility Checker
- Open the tool in your browser
- Configure inputs and options
- View live preview and copy result
Key features
- 100% free client-side tool
- Fast instant results in browser
- Zero tracking or data storage
- Modern responsive UI
Frequently asked questions
- Is this WCAG Color Contrast & Accessibility Checker free to use?
- Yes, 100% free with unlimited usage and zero ads.
- Is my data secure?
- Yes, all processing happens entirely inside your browser client memory.
- Does this tool work on mobile devices?
- Yes, fully optimized for both desktop and mobile web browsers.
- Can I export or copy results?
- Yes, you can copy or download output with one click.
- Do I need an account to use this tool?
- No registration or account creation is required.