WCAG Contrast Checker
Check colour contrast against WCAG accessibility.
Almost before we knew it,
we had left the ground. The quick brown fox.
About the WCAG Contrast Checker
Check colour contrast against WCAG accessibility. The WCAG Contrast Checker is a fast, free online tool from 100Tools that helps you get the job done in seconds — no downloads, no sign-up walls and no clutter.
Whether you're a beginner or a professional, this colour & design tool gives you a clean, modern interface and instant results. Everything runs privately in your browser, so it's unlimited and your data never leaves your device.
Why use the WCAG Contrast Checker?
- Fast & free — get results instantly with no cost to start.
- Privacy-first — all processing happens locally in your browser.
- Works everywhere — desktop, tablet and mobile, no install needed.
- Clean interface — a modern, distraction-free design.
How to use the WCAG Contrast Checker
- 1
Add your input
Upload your file or enter your details into the WCAG Contrast Checker above.
- 2
Configure options
Adjust the available options to match exactly what you need.
- 3
Get your result
The WCAG Contrast Checker processes your input instantly and shows the result.
- 4
Copy or download
Copy the output to your clipboard or download it — no sign-up required.