Color Contrast Checker
Readable sample textSee how these colors look together.
Contrast ratio
Normal text
Large text
About this tool
Check two colors against WCAG text contrast thresholds.
Privacy
Your input is processed locally in your browser and is not uploaded.
Frequently asked questions
Is my input uploaded?
No. The tool runs locally in your browser and does not upload your input.
Which accessibility standard is checked?
The results use WCAG contrast thresholds for normal and large text.
Does it work on mobile?
Yes. The interface adapts to phones, tablets, and desktop screens.