Contrast Checker

Check color contrast for accessibility (WCAG).

Foreground (Text) Color

Background Color

What is Contrast Checker?

Check color contrast for accessibility (WCAG). Our tool runs entirely in your browser using secure, modern client-side technologies. No data is ever sent to our servers, ensuring 100% privacy and security for your files and code.

Why choose SEOToolsk?

100% Private - Client-side processing
Fast & Fluid - Near-instant results
Always Free - No limits or subscriptions
Responsive - Works on any device