Free tool
Color Contrast Checker
Check WCAG contrast ratios for text and backgrounds.
WCAGInstantDesign ready
Why it helps
Accessibility checks
See whether a color pair passes AA or AAA.
Preview
Test combinations before shipping designs.
Color
Color contrast checker
WCAG ratio
Sample text
Ratio: 17.74:1AA normal: PassAA large: PassAAA: Pass
FAQ
Quick answers about this tool.
Is this private?
Yes. All processing happens in your browser.
Do I need an account?
No. These tools are free and work without signup.
Can I use multiple files?
Yes. Most tools support batch processing.