Color Palette Generator
Generate a harmonious color palette from a single seed color. Pick a base color and this free color palette generator instantly builds complementary, analogous or triadic schemes — each shown as swatches with their HEX codes and one-click copy, all in your browser with nothing uploaded.
What is a color palette generator?
A color palette generator takes one starting color and automatically produces a set of harmonious colors that work well together. It applies color theory — the relationships between hues on the color wheel — so you don't have to guess which shades belong next to each other. The most common relationships are complementary (two opposite hues that create strong contrast), analogous (neighbouring hues that sit quietly together for a calm, cohesive feel) and triadic (three hues spaced evenly around the wheel for a balanced, playful result).
Colour choices are one of the hardest parts of design. A palette generator removes the guesswork by giving you a ready-made starting point you can refine. This tool runs entirely in your browser: it reads your seed color, computes its hue, and builds the chosen scheme locally, so nothing you pick is ever uploaded. Designers and developers use palette generators to establish brand colors, theme a UI, pick a website accent, or turn a single photo or logo color into a full set of supporting shades. You get instant HEX codes you can copy straight into CSS, Sketch, Figma or anywhere else.
How to use
- Choose a seed color with the color picker.
- Select a harmony type — complementary, analogous or triadic.
- Click Generate palette to build the scheme.
- Click Copy under any swatch to grab its HEX code.
Example
Set the seed color to #3498db and choose complementary. The tool returns the blue base alongside its opposite orange hues — a crisp, high-contrast pair that works well for a call-to-action button against a cool background. Switching to analogous returns a family of blues and teals, ideal for a calm, unified interface.
Who is this color palette generator for?
This free color palette generator is built for anyone who needs to make a conversion quickly, but a few groups reach for it most often.
- Students and young adults: Learning color harmony is easier when you can push a button. A color palette generator for students shows how complementary, analogous and triadic sets are built.
- Designers and developers: Pull a grounded palette from one seed color instead of starting from raw swatches. This free color palette generator is a color palette generator for designers and developers.
- Professionals: Brand and marketing teams use the palette generator to keep social and web assets within one harmonious scheme.
- Curious users: Play with the hue, saturation and lightness sliders to see a color palette generator react to your seed color.
Color harmony reference table
Seeded from #3498DB, these are the colors the generator's harmony engine returns for each scheme.
| Harmony | Generated palette (hex) |
|---|---|
| Complementary | #52A7E0 #2383C3 #C36323 #E8A87D |
| Analogous | #3CDCB2 #3CD1DC #3C9CDC #3C67DC #473CDC |
| Triadic | #2691D9 #D92691 #91D926 #93C8EC #821757 |
Common use cases
- Building a brand or logo palette that stays consistent across marketing.
- Theming a website or app UI with accessible, matching accents.
- Finding background, text and accent colors for a design system.
- Picking complementary colors for buttons, charts and data visualizations.
Pro tips
- Use complementary for bold calls-to-action, analogous for calm interfaces.
- Pick a vivid (saturated) seed color for richer palettes; muted seeds make grays.
- Verify contrast with a contrast checker before using text in any palette color.
- Try a triadic scheme for logos and icons — it balances visual weight nicely.
FAQ
What is a color palette generator?
A tool that takes a single seed color and automatically produces a set of harmonious colors that work together, based on color-wheel relationships like complementary, analogous and triadic.
What are the different harmony types?
Complementary places two opposite hues together; analogous uses neighbouring hues that share a base; triadic spaces three hues evenly around the wheel. Each gives a different mood.
How do I copy a color code?
Click the Copy button under any swatch and its HEX code is written to your clipboard instantly.
Is the color palette generator free?
Yes — free and unlimited, no signup, no watermark, and it runs entirely in your browser.
Are my colors uploaded anywhere?
No. Everything is computed locally from your seed color, so nothing leaves your device.
Can I use a HEX code I already have?
Yes — pick or type the seed color with the color input and the palette is rebuilt from that exact code.
Which harmony should I choose?
Complementary is bold and high-contrast, analogous is calm and cohesive, and triadic is balanced with a playful energy. Pick to match your brand or mood.
Why is my palette mostly gray?
A very desaturated seed (low saturation) produces muted tones. Choose a more vivid seed color to get richer results.
Do these colors work together?
Yes — the schemes are built on established color theory, so the hues are guaranteed to relate, matching the relationship type you selected.
What else can I do with these colors?
Copy a HEX code into the Color Converter to get its RGB and HSL, or use the Contrast Checker to verify text readability.
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