Readable Text Tester

New

Tune font size, line height and line length for comfortable reading.

How to use the Readable Text Tester

1Paste your text and choose a font.
2Adjust size, line height, spacing and width against the guidelines.
3Copy the CSS for the settings you like.

Color Contrast Checker
New
Check text and UI colors against WCAG AA and AAA contrast rules.
Color Blindness Simulator
New
See images and palettes as people with color vision deficiencies do.
Palette Contrast Grid
New
Test every color pair in a palette for accessible contrast at once.