Free Online Color Palette Generator

Color Palette Generator
Powered by color theory

Use this free online color palette generator to build balanced palettes for branding, websites, UI UX design, and product interfaces. Lock swatches, test accessibility, export to Tailwind or CSS, and regenerate instantly with Space. No login required.

Free Color Theory Tool for Brand, UI, and Web Design Palettes

Generate balanced palettes, lock colors, validate accessibility, and export production-ready color systems from one workflow.

6 Color Harmony Modes

Every palette is mathematically derived from color theory. Switch harmony modes to instantly change the emotional tone of your palette without starting over.

  • Complementary — opposite hues for maximum contrast
  • Analogous — adjacent hues for soft, natural feel
  • Triadic — three evenly spaced hues, vibrant & balanced
  • Tetradic — four hues, full-spectrum richness
  • Split-Complementary — contrast with less tension
  • Monochromatic — one hue, many lightness levels

Lock Colors & Regenerate

Found a color you love? Lock it. Then press Space to regenerate only the unlocked slots. Build your perfect palette incrementally, one color at a time.

  • Press L to lock/unlock the selected color
  • Keyboard navigation with ← → arrow keys
  • Press C to copy HEX to clipboard
  • Ctrl+Z / Ctrl+Shift+Z for undo/redo (30 states)

Complete Color Information Panel

Click any color card to see the full breakdown — every format, every value. Click any row to copy it instantly.

  • HEX, RGB, HSL, HSB, CMYK, LAB, LCH, XYZ, LUV, HWB
  • Color name detection against a curated name database
  • Tints & shades scale (10 lighter + 10 darker variations)
  • Gradient preview derived from palette colors

Color Blindness Simulation

See your palette through the eyes of someone with color vision deficiency. The simulation panel overlays transformed colors in real-time using chromaticity matrix calculations.

  • Protanopia (red-blind)
  • Deuteranopia (green-blind)
  • Tritanopia (blue-blind)
  • Achromatopsia (complete color blindness)

Export to Any Format

One click to get your palette into your project, in the format your workflow demands.

CSS Variables JSON PNG Image SVG Tailwind Config SCSS Variables Share URL
Real Product Screenshots

Follow the Palette Generator Workflow Step by Step

The tutorial below uses the real product UI to show how visitors move from a base hue to an expanded, accessible palette that is ready for gradients, exports, and downstream tools.

Full palette generator screenshot showing the palette row, refinement controls, contrast checker, and linked gradient preview.
Ship

Validate contrast and push the palette into related tools

The full workspace combines harmony generation, contrast checking, and a linked gradient preview so a finished palette can move straight into gradients, exports, and implementation workflows.

Palette generator screenshot showing harmony controls, a generated five-color palette, and color-blindness simulation tabs.
Generate

Choose a harmony mode and generate your first palette

Start with a harmony family such as Square, Complementary, Triadic, or Analogous, then compare the resulting five-color palette with its color-blindness simulation before committing to a direction.

Palette generator refinement screenshot showing the base color wheel, HEX field, eyedropper, and refinement sliders.
Tune

Refine the base color before regenerating harmonies

Use the wheel, HEX input, eyedropper, and base-color refinement controls for brightness, saturation, hue shift, and temperature so locked palette colors stay aligned with your intended direction.

Palette generator screenshot showing the contrast checker panel beside the linked gradient preview.
Validate

Check contrast and preview the linked palette gradient

Before exporting, users can verify foreground and background readability, confirm AA and AAA states, and inspect how the current palette blends inside the linked gradient editor.

Palette detail screenshot showing detailed color formats, tints, and shades for a selected palette color.
Inspect

Open full color details, tints, and shades for any swatch

The detail view surfaces formats like HEX, RGB, HSL, LAB, LCH, OKLCH, and more, then extends the chosen swatch into lighter tints and darker shades for production handoff.

Palette generator screenshot showing generated supporting colors and a base color info panel.
Expand

Review supporting colors and base color information

Generated supporting colors help users expand beyond the original five swatches while the base color info panel gives a focused place to inspect the source color and jump into a deeper detail page.

Palette Generator for Branding, Web Design, and UI Systems

Use this color palette generator when you need fast palette exploration with clear handoff into CSS, Tailwind, gradients, and accessible interface work.

  • Brand design: build primary, neutral, and accent colors from one starting hue
  • UI systems: validate accessible combinations before handing tokens to developers
  • Creative exploration: test rainbow color palette directions, monochrome sets, and bold complementary palettes
  • Production handoff: continue into the Tailwind color generator or the CSS gradient generator without rebuilding colors

Related color tools

Color Palette Generator FAQ

Answers about generating, locking, and exporting palettes for brand, website, and product design work.

The generator starts from color theory harmony rules such as complementary, analogous, triadic, and monochromatic, then builds a balanced five-color palette around that logic.

Yes. Lock any swatch you want to keep, then regenerate only the unlocked colors until the palette is exactly right.

Yes. You can export palette colors as CSS variables, JSON, PNG, SVG, SCSS, or a Tailwind-ready config for development handoff.

Yes. It is designed for graphic designers, web designers, UI UX teams, and brand designers who need balanced palettes that can move straight into production.

Generate palettes now

No login. No download. Free.

Open Palette Generator