FlowToolkit
Utility

Color Palette Generator

Generate accessible color palettes and CSS variables from any hex color.

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About this tool

Free in-browser color palette generator for designers and developers. Pick a base hex color, generate analogous, complementary, triadic, monochrome, or shade palettes, copy individual colors, export CSS variables, and check light or dark text readability hints instantly.

Color palettes for real interface work

A useful color palette does more than look attractive. It gives a product hierarchy: one color for identity, softer colors for backgrounds and borders, stronger colors for actions, and enough contrast for readable text. The Color Palette Generator turns one hex color into five related colors you can test immediately in a website, app mockup, design system, chart, or brand concept.

Everything happens in the browser. Enter a color, pick a scheme, and copy the result as individual hex codes or CSS custom properties. No signup, no upload, and no remote color processing are required.

Which palette scheme should I use?

  • Analogous palettes are best for calm, cohesive interfaces because the colors sit near each other on the color wheel.
  • Complementary palettes are best when you need a strong accent color for buttons, highlights, alerts, or campaign sections.
  • Triadic palettes are best for dashboards, charts, games, or playful brands that need multiple distinct accent colors.
  • Monochrome palettes are best for clean product UI because they vary lightness while keeping the same hue.
  • Shades are best for practical UI scales such as backgrounds, dividers, hover states, disabled states, and subtle surfaces.

How to use the generated colors

Start by assigning roles instead of using colors randomly. Use the base color for brand moments, the strongest accent for primary actions, the lightest color for backgrounds, and darker colors for text, borders, or focus states. Copy the CSS variables when you want to move quickly into code, or copy the comma-separated hex list when you are moving colors into a design tool.

Each swatch includes a light-or-dark text hint based on brightness. That hint is useful while exploring, but accessibility depends on exact text size, font weight, and background. For production UI, check important combinations against WCAG contrast requirements before publishing.

Common questions answered

  • A hex color is a six-character RGB color code used in CSS, such as #18B6C6.
  • A good website palette usually needs a primary color, one accent color, neutral backgrounds, readable text colors, and clear interaction states.
  • For brand consistency, keep one palette as design tokens and reuse it across buttons, links, cards, charts, and empty states.
  • For dark mode, avoid simply inverting colors. Generate a shade or monochrome scale, then test contrast on the actual dark background.
  • For charts, prefer triadic or complementary palettes only when the categories need to be visually distinct.

Frequently asked questions

What is a color palette generator?

A color palette generator creates a set of related colors from one starting color. This tool uses color-wheel relationships and lightness adjustments to produce practical five-color palettes for websites, apps, charts, and brand mockups.

How do I generate a color palette from a hex code?

Enter a hex color such as #18B6C6, choose a palette scheme, and the colors update immediately. You can also use the color picker or click Random to explore a new starting color.

Which color schemes can I generate?

The tool supports analogous, complementary, triadic, monochrome, and shades. Analogous colors sit near the base hue, complementary colors use contrast, triadic colors create three balanced accents, and monochrome or shade palettes build a single-hue scale.

Can I export the palette for CSS?

Yes. Copy the palette as hex values or export CSS custom properties named --color-1 through --color-5. The CSS output is ready to paste into a stylesheet, design token file, or prototype.

How do I choose accessible text colors?

Each swatch includes a quick hint for light text or dark text based on relative brightness. Use it as a first pass, then run a WCAG contrast check for important UI text, especially small labels and buttons.

What is the best palette type for a website?

Use analogous or monochrome palettes for calm interfaces, complementary palettes for strong calls to action, triadic palettes for playful products or charts, and shades when you need backgrounds, borders, hover states, and disabled states from one brand color.

Can I copy individual colors?

Yes. Click any swatch to copy its hex code. Use Copy Hex to copy the full palette as a comma-separated list.

Is my color data uploaded?

No. Palette generation happens entirely in your browser. No colors, CSS output, or clipboard values are sent to a server.