WCAG Contrast Checker
Compute the contrast ratio between two colors and WCAG compliance.
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How It Works
- Enter foreground color
- Enter background color
- Click Convert
- Review compliance
Use Cases
- Accessible design
- Auditing UI
- Compliance
Frequently Asked Questions
What ratio is needed?
4.5:1 for normal text, 3:1 for large text (WCAG AA).
Does the WCAG Contrast Checker send my code or data to any server?
No. Everything runs locally in your browser. Your code, data, and files remain on your device at all times.
What input size limits apply?
The tool handles most practical input sizes. Very large files may cause browser performance limitations since processing is done client-side.
Can I use this in my development workflow?
Absolutely. The tool is designed for developers and integrates well into local development workflows without needing command-line utilities.
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