Color Contrast Checker
Check WCAG AA and AAA contrast ratios between any foreground and background color pair.
How to use Color Contrast Checker
- Enter text, configure options, or upload a file as required by the tool.
- Click "Run Tool" and review the preview or result.
- Copy the text output or download generated files — downloads are deleted after streaming.
Privacy model
Server-side file tools use temporary storage only. Files are deleted in a finally block after processing or download. No file history is stored.
Common Questions
Frequently Asked Questions
Everything you need to know about using Color Contrast Checker safely, accurately, and privately.
Is Color Contrast Checker completely free to use?
Yes, 100% free with no hidden paywalls, mandatory subscriptions, or feature limits. LoomFree provides open digital tools for everyone.
Do I need to install software or create an account?
No account registration or software installation is required. Simply open the tool in any modern web browser and start working immediately.
Is Color Contrast Checker safe and secure?
Yes. LoomFree enforces modern HTTPS encryption and strict client-side data boundaries. Your inputs, calculations, and files are never sold or permanently archived.
Can I access this tool on mobile phones and tablets?
Yes. All LoomFree utilities are engineered with responsive mobile-first layouts that work across desktop monitors, laptops, iPads, and mobile screens.