Tuulo

Color contrast checker

So everyone can read your site, post or poster.

Everything happens in your browser: your files are never uploaded to a server.

This is the headingAnd this is normal paragraph text.

How to use it

  1. Pick the text color.
  2. Pick the background color.
  3. See the ratio and whether it passes AA or AAA.

FAQ

What contrast do I need?

At least 4.5:1 for normal text (AA) and 3:1 for large text.

More tools