Contrastproof
Finds each text color on your page that fails accessibility contrast and gives you a passing shade.
Concept
You enter a web address. Contrastproof opens the page in a Chromium browser, in light mode and in dark mode, and checks every text color against the background behind it for WCAG contrast. WCAG is the accessibility standard that sets how legible text must be.
For each color that fails, it returns the nearest color that passes. It changes only the lightness, so the hue stays the same. The fix comes from a formula; no AI model is involved.
The free scan shows the 2 worst problems in each mode. A full report with a ready CSS file costs $20, and 5 sites cost $79, both paid once.
History
- First version: the color repair engine and the page scanner. Live on contrastproof.com the same day.
- Paid reports open.
- 5 free color tools and 3 articles.
- A 6th tool, which lists every passing color, and scan reports that name what the scanner could not reach.
- Screen reader fixes across the site.
Achievements
- 6 free color tools.
- 7 articles and 515 pages, one for each common pair of text and background colors.