Random Color Palette Generator
A useful palette needs more than unrelated random colors. This generator creates 2 to 15 copy-ready HEX swatches in a chosen style — vibrant, pastel, muted or dark — so you can explore UI accents, chart colors, social graphics and quick brand directions without opening a design app.
How to generate a random palette
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1
Choose a style
Vibrant pushes saturation for bold interfaces, pastel keeps colors light, muted lowers intensity and dark stays in deeper tones.
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2
Set the color count
Generate a compact pair or a larger set of up to 15 swatches for charts, UI states or mood boards.
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3
Generate or change the seed
The funnel mode can keep a seed for a repeatable palette, while the classic generator rolls a fresh set each time.
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4
Copy the output
Click a swatch to copy its HEX code, or export the full palette as a HEX list or CSS custom properties.
Style cheatsheet
| Style | Best for | What to check |
|---|---|---|
| Vibrant | Product UI, campaign graphics, charts that need clear separation | Avoid using every swatch at full strength in the same layout |
| Pastel | Calm backgrounds, soft illustrations, gentle accent systems | Make sure text contrast stays strong enough |
| Muted | Editorial layouts, dashboards, mature brand systems | Add one clearer accent if the set feels too flat |
| Dark | Dark interfaces, data visualizations and high-impact blocks | Test light text and focus states before publishing |
Practical tips
- Start with a role for each color. A UI palette usually needs a dominant surface color, one or two supporting colors and a small number of accents.
- Check contrast pair by pair. A palette can look good as swatches and still fail when text sits on top of it. Test the actual foreground and background combinations you plan to ship.
- Use the seed when you need repeatability. If a palette is close but not right, generate another seed; if it works, keep the seed with the project notes so you can recreate it later.
Tools of the trade
The generator outputs HEX because it travels well between design tools, CSS and documentation. HSL is useful when you want to think in hue, saturation and lightness. OKLCH is worth learning for accessible design systems because it gives designers a more perceptually even way to reason about lightness and chroma.
Frequently Asked Questions
Random hue alone is not enough. Palettes become more useful when saturation and lightness vary by role — for example one pale surface, one mid-tone support and one stronger accent.
Muted or pastel are usually easiest to present because they leave room for typography, photography and whitespace. Vibrant palettes can work well, but they need more discipline.
Yes — copy a single swatch as HEX, copy the full palette as a space-separated HEX list, or copy a CSS custom-properties block from the export step.
No. Use the generated colors as a starting point, then verify the exact text and background pairs against WCAG contrast guidance before publishing.
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