Color Picker & Converter Online

WCAG Contrast Checker
8.06:1
Normal text Aa Large text Aa
Palette Generator
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Frequently Asked Questions

What color formats are supported?

HEX (#rrggbb), RGB (0–255 per channel), HSL (hue 0–360, saturation and lightness 0–100%), and OKLCH (perceptually uniform lightness, chroma, hue). All conversions happen in real time.

What is OKLCH?

OKLCH is a perceptually uniform color space. It describes colors using Lightness (0–1), Chroma (saturation, 0–0.4), and Hue (0–360). It produces more natural-looking gradients and palettes than HSL.

How does the WCAG contrast checker work?

It calculates the luminance contrast ratio between two colors per WCAG 2.1. A ratio of 4.5:1 is required for normal text (AA), 3:1 for large text (AA), and 7:1 for enhanced contrast (AAA).

Is my data safe?

Yes. All color calculations happen entirely in your browser. No data is ever sent to any server.

How are palettes generated?

Palettes use color theory harmonies: complementary (opposite hue), analogous (adjacent hues), triadic (three evenly spaced), split-complementary, and shades (varying lightness).