About the Color Contrast Checker
The Color Contrast Checker is a free online tool that lets you check WCAG contrast ratio between two colors. With it you can format, encode, validate and generate code and data instantly, there's nothing to install and no account to create. Just open the tool, do what you need, and you're done.
It's part of the Developer collection on Toolzy, a growing platform of 135+ free, privacy-first tools built for speed and a great experience on every device.
Also known as: wcag, accessibility, ratio.
Why use the Color Contrast Checker?
- Runs locally in your browser
- Handles large inputs quickly
- Copy results with one click
- No rate limits or sign-up
When to use it
- Debugging APIs and payloads
- Cleaning up or formatting data
- Generating test values quickly
How to use the Color Contrast Checker
- Open the Color Contrast Checker. Open the Color Contrast Checker on this page, there is nothing to install and no account needed.
- Add your input. Type or paste your input into the tool.
- Adjust options. Choose any options you need, the Color Contrast Checker updates instantly.
- Get your result. Click the action button to download or copy your result. It is 100% free.