Check that your text is readable on its background, against the WCAG accessibility rules.
Runs in your browser. Nothing you type is stored or sent.
Normal body text looks like this. Can everyone read it easily?
4.5:1 for normal text and 3:1 for large text and buttons meets WCAG AA, the usual legal and good-practice bar.
No. This runs in your browser, so what you type stays on your device.
We build business websites in 7 days and web apps in weeks, for a fixed price. Then we automate the busywork around them.
Book a free strategy callThe Colour Contrast Checker tests a text colour against its background and tells you whether it passes WCAG AA and AAA. Good contrast makes a site readable for everyone, including people with low vision.
Search engines and visitors reward the same things: pages that load in under about 2.5 seconds, a clear title and description, working links, HTTPS, and a layout that works on a phone. These checks show where your site stands. If you would rather have it done for you, we build and fix business websites, usually in 7 working days.
More free tools: see every tool.