Is Contrast Checker free to use?

Yes, Contrast Checker on DevHexLab is completely free. No login, no account, and no payment required.

Does Contrast Checker upload my data to a server?

No. Contrast Checker runs entirely in your browser using client-side JavaScript. Your data never leaves your device and is never sent to any server.

Yes. Once the page is loaded, Contrast Checker works without an internet connection because all processing happens locally in your browser.

Contrast Checker belongs to the "Color & UI" category on DevHexLab. Convert colors, generate palettes, gradients, and shadows

Check WCAG color contrast ratios for accessibility compliance

contrastwcagaccessibilitycolor

Foreground (Text)

Background

Normal Text Sample

The quick brown fox jumps over the lazy dog

Small body text example at 14px

18.61

Contrast Ratio

AA Normal textPass

AA Large textPass

AAA Normal textPass

AAA Large textPass

Learn more

Step-by-step guide

How to Check Color Contrast for Accessibility

Use the Contrast Checker to ensure your design meets WCAG accessibility standards.

In-depth article

WCAG Color Contrast: A Practical Guide

Accessible color choices are not optional. Learn the WCAG contrast requirements and how to check your designs.

HEX to RGB

Convert hexadecimal color codes to RGB and HSL values

RGB to HEX

Convert RGB color values to hexadecimal color codes

Color Picker

Pick colors visually and get HEX, RGB, and HSL values