DiffCheck

Color Palette Generator Online

Generate harmonious color palettes from any base color. Six harmony modes including complementary, triadic, and analogous. Export as CSS variables.

BASE COLOR
hsl(217, 91%, 60%)
HARMONY MODE
PRESETS
PALETTE

Click any swatch to copy its HEX value.

CSS VARIABLES
:root {
  --color-1: #073c92;
  --color-2: #0a5adb;
  --color-3: #3c83f6;
  --color-4: #85b2f9;
  --color-5: #cee0fd;
}

What Is Color Palette Generator?

Color Palette Generator is a free online tool for creating harmonious color palettes from any base color. Choose a base HEX color and a harmony mode — monochromatic, complementary, analogous, triadic, split-complementary, or tetrad — and the tool instantly generates a five-color palette following established color theory rules. Click any swatch to copy its HEX value, or export the entire palette as CSS custom properties. All calculations run locally in your browser.

How to Use Color Palette Generator

  1. Enter a HEX color (e.g. #3b82f6) or use the color picker to choose your base color.
  2. Select a harmony mode from the dropdown: monochromatic, complementary, analogous, triadic, split-complementary, or tetrad.
  3. The palette updates instantly. Click any swatch to copy its HEX code.
  4. Click Copy All to copy all HEX values as a comma-separated list.
  5. Click Copy CSS Variables to export the palette as CSS custom properties for your stylesheet.

Features

  • Six harmony modes — monochromatic, complementary, analogous, triadic, split-complementary, tetrad
  • Live color picker — visual picker and HEX input work together in real time
  • Preset swatches — eight common colors for quick start
  • Click-to-copy swatches — click any color to copy its HEX to clipboard
  • Copy All — copy entire palette as comma-separated HEX values
  • CSS variables export — one-click copy as CSS custom properties (--color-1 to --color-5)
  • HSL display — shows the HSL representation of your base color

FAQ

What color harmony modes are available?

The tool supports six color harmony modes: monochromatic (shades of one hue), complementary (opposite hues on the color wheel), analogous (adjacent hues), triadic (three equally spaced hues), split-complementary (base color plus two colors adjacent to its complement), and tetrad (four colors 90° apart).

How do I export the palette to CSS?

Click "Copy CSS Variables" to copy the palette as CSS custom properties (e.g., --color-1: #3b82f6) ready to paste into your stylesheet.

Can I enter any HEX color as the base?

Yes. Type any 6-digit HEX code (e.g. #3b82f6) or use the color picker. 3-digit shorthand like #f00 is also supported.

How do I copy a single color from the palette?

Click any color swatch in the palette to copy its HEX value to clipboard. A checkmark confirms the copy.