Text Contrast Checker
Type your own text, set the size and weight, and see whether it's readable on your background.
Free tools that work in your browser. Edit this text to test your own words.
—Contrast ratio
—Text category
—WCAG level reached
● Your files are processed locally in your browser and are not uploaded to our servers.
How it works
Whether a contrast is enough depends on the text size: WCAG considers text large from 24 px, or 18.66 px when bold, and allows a lower ratio (3:1 instead of 4.5:1) for it. KadiTools applies the rule that matches the size and weight you choose. 1 pt = 1.333 px, so 18 pt = 24 px.