Is it free and private?

Yes, free and entirely in your browser.

Pick colors, convert between HEX, RGB, HSL and HSV, generate shades, and check contrast.

What is the contrast checker for?

It measures the WCAG contrast ratio between two colors so you know if text is readable (AA / AAA).

Yes, in supported browsers, via the eyedropper button.

No — everything stays on your device.

HEX, RGB(A) and HSL(A), each with one click.

Edit any format — the others update live.

Native picker

HEX

RGB

HSL

HSV

Click any swatch to copy its HEX.

Lighter tints on the left, darker shades on the right.

WCAG ratio for text legibility.

Foreground (text)

Background

Big heading text The quick brown fox jumps over the lazy dog — body copy at a normal weight.

— contrast ratio

AA · Normal—

AA · Large—

AAA · Normal—

AAA · Large—