local / WCAG contrast / privacy-first
Check color contrast in one view.
Enter two colors to check the ratio and WCAG AA/AAA locally in this browser.
Enter two colors
Supports #RRGGBB or rgb(r, g, b).
Enter two colors to calculate locally.
Result
| Text | AA | AAA |
|---|---|---|
| Normal text | ||
| Large text |
Boundaries
- The ratio uses WCAG 2 relative luminance.
- Input and calculation stay local; there is no upload, storage, or external request.
- This does not crawl a whole site or change colors automatically.