100% In-Browser · Spacebar Generator · WCAG AA/AAA Contrast CheckedCategory: Design & Assets

Free Color Palette Generator (Color Scheme & Harmonies Maker)

A fast, in-browser color scheme generator designed for UI/UX designers and front-end developers. Explore complementary, analogous, triadic, tetradic, monochromatic, and pastel color harmonies with instant WCAG accessibility scoring. Press Spacebar to shuffle, lock your favorite colors, and export clean CSS variables, Tailwind configurations, or SVG swatches.

Quick Tutorial

How to use Color Palette Generator

1Step 1

Press Spacebar or Select Harmony Preset

Tap Space on your keyboard to generate 5 harmonious shades or choose from curated styles like Pastel, Earthy, or Cyberpunk.

2Step 2

Lock Favorites & Adjust Values

Click the lock icon on shades you love to preserve them while generating other columns. Fine-tune HEX, RGB, or HSL values.

3Step 3

Check Contrast & Export Code

Inspect WCAG 2.1 compliance badges for text legibility, then copy CSS variables or Tailwind utility definitions with one click.

Technical Reference

Technical specifications & standards

Verified standards, supported properties, and industry specifications implemented in this utility.

Color Model	Channel Notation	Gamut Range	Best Use Case
HEX / sRGB	#RRGGBB (e.g. #2d4c38)	Standard 8-bit sRGB (0-255)	Universal web CSS, HTML tags, legacy browser support
RGB / RGBA	rgb(r, g, b) / rgba(r, g, b, a)	Standard 8-bit sRGB (0-255)	Dynamic alpha transparency overlays and canvas APIs
HSL	hsl(hue, sat%, light%)	360deg hue cylinder (0-100%)	Human-intuitive UI tinting and monochromatic scale creation
OKLCH	oklch(L C H)	Perceptually uniform, Display P3	Modern CSS color 4 standards with uniform perceived lightness
WCAG Contrast	Ratio X:1 (1:1 to 21:1)	AA (>= 4.5:1), AAA (>= 7:1)	Accessibility compliance for body text and UI components

In-Depth Documentation

Architecture & best practices

Perceptual Uniformity vs sRGB Color Shuffling

Standard sRGB color math often creates uneven perceptual jumps: yellow appears dramatically brighter than blue even at the same nominal lightness value. Our harmony engine utilizes perceptual lightness curves to ensure generated color sets maintain balanced visual weight across UI layouts and marketing graphics.

WCAG 2.1 Contrast Standards for Web Components

Web Content Accessibility Guidelines (WCAG) 2.1 require a minimum contrast ratio of 4.5:1 for normal body text (Level AA) and 7:1 for enhanced legibility (Level AAA). For large headers (>= 18pt or 14pt bold), 3:1 is required. Our real-time contrast engine evaluates each shade automatically against pure black and pure white to guarantee readable text placement.

Common Questions

Frequently asked questions

Everything you need to know about formats, browser compatibility, and usage.

How does the spacebar generator choose harmonious colors?▼

The engine generates colors based on classic color wheel geometry (complementary 180deg offsets, analogous 30deg spreads, and triadic 120deg triangles) combined with controlled saturation and lightness bounding boxes.

What is the difference between WCAG AA and AAA contrast?▼

WCAG AA requires a 4.5:1 contrast ratio for normal text and is the global legal standard for commercial websites. WCAG AAA requires a 7:1 ratio, providing optimal accessibility for users with vision impairments.

Can I export this palette directly to Tailwind CSS?▼

Yes! Click 'Copy Tailwind' to copy ready-to-paste color tokens for tailwind.config.js or @theme blocks in Tailwind CSS v4.

How do I save or share my generated palette?▼

You can copy the shareable URL with palette hex codes encoded in the hash, download an SVG swatch image, or copy the complete JSON data representation.