Color Palette Generator

Generate harmonious color palettes from any base color using color theory rules.

Color Palette Generator

#3A9BD5
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#D5399C
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#9CD539
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#3A9BD5,#D5399C,#9CD539

How to Use

1

Enter or pick a seed color

Provide your primary brand color as the base for palette generation.

2

Select a harmony type

Choose complementary, analogous, triadic, or split-complementary color relationships.

3

Review generated palette

See the full palette including tints and shades of each harmony color.

4

Export for your project

Copy hex codes or export as CSS variables or JSON design tokens.

Color Theory for Digital Design

Professional color palettes aren't chosen randomly — they are built using color theory relationships that ensure visual harmony. Complementary colors create contrast and energy; analogous colors create cohesion and calm; triadic colors create vibrant balance. This generator applies these proven relationships to any seed color you choose.

Real-World Examples & Use Cases

Brand Identity Color Systems

New brands need a complete color system, not just a single primary color. A palette generator takes the brand's primary color and produces a full set of complementary, neutral, and accent colors that work together. This system populates CSS design tokens, Tailwind config color extensions, and Figma component libraries. Consistent color systems ensure that every new component added to the product automatically fits the brand palette without ad-hoc color choices.

UI Design Token Generation

Modern design systems use semantic color tokens: --color-primary, --color-secondary, --color-success, --color-warning, --color-error. Generating a harmonious palette provides the raw color values that map onto these semantic tokens. A blue primary color might map to: primary=#3b82f6, primary-light=#bfdbfe, primary-dark=#1d4ed8. The palette generator provides the full range of tints and shades needed to populate every tier of the token system.

Data Visualization Color Sequences

Charts and graphs require multiple colors that are visually distinct yet harmonious as a group. Pie charts, stacked bar charts, and multi-line graphs need 4–8 colors that don't clash. Analogous palettes work well for sequential data (light to dark of a single hue); categorical data benefits from triadic or tetradic palettes where each color represents a clearly different category. The generator produces chart-ready color sets tested for harmony.

Dark Mode Theme Derivation

Creating a dark mode variant of a light theme requires adjusting the same core palette colors to remain readable and vibrant on dark backgrounds. Tints and shades generated from the base color provide both light-mode (using lighter tints) and dark-mode (using slightly desaturated, lighter variants of the original) color options. The generated palette includes enough variation to populate both themes from a single seed color without starting from scratch for the dark variant.

How It Works

Color harmony calculations (using HSL color model): Complementary: hue + 180° Analogous: hue - 30°, hue, hue + 30° Triadic: hue, hue + 120°, hue + 240° Split-Complementary: hue, hue + 150°, hue + 210° Tetradic (Square): hue, hue + 90°, hue + 180°, hue + 270° All hue values are modulo 360°. Tint generation (lighter shades): Increase lightness: L + (100 - L) × factor Shade generation (darker shades): Decrease lightness: L × factor Saturation adjustment for dark mode: Reduce saturation by 10–20% and increase lightness to prevent over-saturation on dark backgrounds

Frequently Asked Questions

What is the difference between a tint, shade, and tone?▼
A tint is a color mixed with white — it becomes lighter and less saturated (HSL: higher lightness). A shade is a color mixed with black — it becomes darker (HSL: lower lightness). A tone is a color mixed with gray — it becomes less saturated while maintaining lightness. In design systems, a color ramp (50–950 scale in Tailwind) contains both tints (50–400) and shades (600–950) of the base color (500).
Which harmony type should I use for a corporate website?▼
Analogous color palettes (adjacent colors on the wheel, e.g. blue, blue-violet, violet) are best for corporate and professional sites — they read as calm, trustworthy, and unified. Complementary palettes (blue + orange, red + green) create high contrast and energy suitable for CTAs and marketing sites but can feel aggressive in large amounts. Triadic palettes add vibrancy and work well for creative agencies and playful brands.
How many colors should a UI color system have?▼
A complete design system typically includes: 1 primary color (with 9–11 tint/shade variants), 1 secondary/accent color (with variants), 1 neutral gray scale (10 steps), plus semantic colors for success (green), warning (yellow/amber), error (red), and info (blue). This totals approximately 40–60 individual color values covering all common UI states. Tools like Tailwind CSS, Material Design, and Radix UI all follow this pattern.
How do I ensure my color palette is accessible?▼
Accessibility requires checking contrast ratios between text and background colors using the WCAG formula. The minimum ratios are 4.5:1 for normal text and 3:1 for large text (WCAG AA). After generating your palette, test all text-on-background combinations — especially body text on primary/secondary colored backgrounds and light text on dark backgrounds. Tools like WebAIM Contrast Checker verify compliance. Your palette's darkest shades typically work for text; lightest tints work for backgrounds.
What is a split-complementary palette and when should I use it?▼
Split-complementary uses a base color plus the two colors adjacent to its complement (e.g., blue's complement is orange — split-complementary gives blue + yellow-orange + red-orange). This creates contrast without the tension of pure complementary. It's more forgiving than full complementary and gives you three-color variety. Use split-complementary for designs that need visual interest and contrast but must remain approachable — consumer products, educational platforms, and health apps benefit from this softer approach.

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