randarium
Colour

Random Palette Generator

Create a compact palette for a design, illustration, or prototype.

Also known as: color palette · colour scheme

seeded

Output

No output yet — set your options and hit .
About this tool, tips & examples

What it does

The Random Palette Generator creates harmonious groups of 2 to 20 colors — in HEX or RGB — using color-harmony schemes rather than pure chance, so the results hang together like intentional palettes. Seeded generation means a palette you like can always be regenerated exactly.

Common use cases

  • UI theme exploration — candidate palettes for prototypes before the real brand work happens.
  • Illustration and generative art — coherent color sets as raw material, reproducible by seed.
  • Data visualization — quick categorical color sets for charts and maps (check contrast for your use).
  • Brand brainstorming — generate twenty palettes, screenshot the two contenders, keep their seeds.

Settings

  • Colours — 2 to 20 swatches per palette.
  • Colour format — HEX (#22c55e) or RGB.
  • Harmony scheme — how the hues relate (the reason palettes look composed instead of random).
  • Seed — the same seed and settings always regenerate the identical palette — the seed is the palette’s name.

Privacy note

Palettes are generated locally in your browser and never uploaded. The colors are synthetic — not sampled from any real brand — and no accessibility guarantees are attached; verify contrast before shipping.

FAQ

Why do these look better than random colors? Harmony schemes constrain the hue relationships (analogous, complementary, and friends), which is most of what makes a palette feel deliberate.

Can I use a generated palette in production? As a starting point, yes — but run contrast checks (WCAG) for any text/background pairs, and expect to hand-tune one or two swatches.

How does this relate to the other color tools? Random Colour gives single colors; Gradient builds CSS gradients; UI Theme assembles a full light/dark theme; Design Token exports named token sets. Palette is the exploration step before all of them.