Checking Contrast With Free Tools
Measure real colors before you ship them.
Stop Guessing, Start Measuring
You never have to eyeball contrast. Free tools compute the exact ratio from two colors and tell you instantly if it passes.
The WebAIM Contrast Checker
The WebAIM Contrast Checker is the classic. Paste a foreground and background color and it shows the ratio plus AA and AAA pass marks.
All lessons in this course
- Why Contrast Ratios Exist
- Hitting AA: Text and Large Text Thresholds
- Never Rely on Color Alone
- Checking Contrast With Free Tools