Color Palette Generator

Generate beautiful color schemes from any base color. Complementary, analogous, triadic, and more. Export as CSS variables.

Complementary Scheme

About Color Palettes

A color palette is a set of colors chosen to work together in a design. Good palettes create visual harmony, guide the viewer's eye, and communicate mood and brand identity. This free online color scheme generator builds harmonious palettes from any base color using proven color-wheel relationships.

Color Harmony Schemes

Using CSS Variables

Export your palette as CSS custom properties for easy theming. Define them in :root and reference them with var(--color-1) throughout your stylesheets. This makes it trivial to swap themes or tweak colors globally.

How to Use the Color Palette Generator

  1. Select a base color using the color picker, or enter a HEX value directly. This base color serves as the anchor for all generated color relationships.
  2. Choose a harmony scheme: complementary (opposite color on the wheel), analogous (adjacent colors), triadic (three evenly spaced colors), tetradic (four colors forming a rectangle), or monochromatic (variations of the same hue with different lightness).
  3. Review the generated palette showing all colors with their HEX, RGB, and HSL values. Adjust the base color or try different schemes until you find a combination that works for your project.
  4. Export the palette as CSS custom properties (variables) for direct integration into your stylesheet, or copy individual color values as needed.

Understanding Color Theory and Harmony

Color harmony refers to the visually pleasing arrangement of colors based on their relationships on the color wheel. The color wheel, first proposed by Isaac Newton in 1666, arranges hues in a circle where primary colors (red, yellow, blue) are evenly spaced and secondary colors (orange, green, purple) sit between them. Harmonic color schemes leverage geometric relationships on this wheel: complementary colors are 180° apart, analogous colors are within 30-60° of each other, and triadic colors are spaced 120° apart. These mathematical relationships produce combinations that the human eye finds naturally balanced and aesthetically pleasing.

Each harmony scheme creates a different mood and serves different design purposes. Complementary schemes (e.g., blue and orange) create high contrast and energy, making them ideal for call-to-action buttons and sports branding. Analogous schemes (e.g., blue, teal, and green) produce serene, cohesive designs suited for nature, health, and wellness brands. Triadic schemes (e.g., red, yellow, blue) offer vibrant balance and are common in children's products and playful branding. Tetradic (double-complementary) schemes provide rich variety but require careful management of dominance. Monochromatic schemes use a single hue with varying lightness and saturation, creating elegant, sophisticated designs that are easy to execute well.

When building a palette for web design, a common framework is the 60-30-10 rule: one dominant color covers 60% of the design (usually a neutral or brand color), a secondary color covers 30%, and an accent color covers 10% for highlights and calls to action. This generator exports palettes as CSS custom properties (--color-primary: #3b82f6;), which makes them trivially easy to theme and swap. Accessibility is another critical consideration — always check WCAG color contrast ratios (at least 4.5:1 for normal text and 3:1 for large text) to ensure your palette is usable by people with visual impairments.

Frequently Asked Questions

How do I pick a good base color?
Start with a color that matches your brand or mood. The generator will create harmonious combinations from any base.
What is the difference between triadic and tetradic?
Triadic uses 3 colors evenly spaced (120° apart). Tetradic uses 4 colors (90° apart) for richer combinations.
Can I export the palette for my project?
Yes, click 'Export CSS Variables' to copy the palette as CSS custom properties ready to paste into your stylesheet.
Which scheme is best for beginners?
Analogous and monochromatic schemes are the easiest to use because the colors naturally harmonize.
What is the best color scheme for a website?
It depends on your brand and purpose. Complementary schemes create high contrast and energy, analogous schemes feel cohesive and calm, and monochromatic schemes are elegant and safe. A common approach is 60% dominant color, 30% secondary, 10% accent.
How many colors should I use in my palette?
Most designs work best with 3-5 colors: a primary brand color, 1-2 secondary colors, an accent for CTAs, and a neutral (gray) for text and backgrounds. More than 5-6 colors becomes difficult to manage consistently.
What are CSS custom properties and why export them?
CSS custom properties (variables) like --color-primary: #3b82f6 let you define colors once and reuse them throughout your stylesheet. They make theme changes trivial — update one variable and all references update automatically.
How do I ensure my colors are accessible?
Check WCAG contrast ratios: at least 4.5:1 for normal-sized text and 3:1 for large text against its background. Use online contrast checkers. Avoid relying on color alone to convey meaning — add text labels or icons for colorblind users.
What is the 60-30-10 rule in color palettes?
It is a classic guideline for balanced color schemes: use your dominant color for about 60% of the design (backgrounds and large areas), a secondary color for 30%, and an accent color for the remaining 10% (buttons, links, highlights). Applying it to a palette from this generator keeps layouts cohesive without looking flat.

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