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Random Color Generator

Generate random colours you would actually use.

Color Tools Reviews Free · no sign-up

What to generate

Press the space bar to generate again.

The colours 
The colours appear here

Quick Tool Overview

The Random Color Generator constrains the randomness to the part of the colour space worth using — hue range, saturation and lightness bounds — because picking three random bytes gives you mud far more often than a colour.

What it does
Generates random colours and palettes
You give it
Optional hue, saturation and lightness bounds
You get back
Colours you could actually use, with values
Best for
Breaking a blank page and finding a starting point
Color Tools Free, unlimited use No sign-up Runs in your browser

About the Random Color Generator

Truly random colours are not very useful. Picking three random bytes gives you a muddy near-grey most of the time, because the vast majority of the RGB cube is exactly that, and the few that are not are usually unusable.

So this generator lets you constrain the randomness to the part of the space you want. Limit the hue to a range — warm, cool, or one narrow band — and set the saturation and lightness bounds, and every colour it produces will be one you could actually put in a design.

It generates single colours or whole palettes, and the palette mode understands that randomness alone does not make a palette. Colours can be spread evenly around the wheel, kept within a hue family, or built from a random base using the classical harmonies. Every result comes with its HEX, RGB and HSL values, and the whole set copies or exports in one go. Pressing the space bar generates again, which is the only way to browse this sort of thing at any speed.

Key features of the Random Color Generator

Constrained randomness

Limit the hue range and the saturation and lightness bounds, so every result is usable rather than most of them being grey.

Palettes, not just colours

Generate a whole set spread around the wheel, kept in one hue family, or built on a classical harmony.

Space bar to reroll

The only sensible way to browse forty colours in a row.

Every value shown

HEX, RGB and HSL for each colour, and the whole palette copies in one go.

Preset moods

Pastel, vivid, muted, dark and earth-tone ranges already set up, as a starting point rather than a limit.

How to use the Random Color Generator

  1. 1

    Choose what to generate

    A single colour, or a palette of up to ten.

  2. 2

    Set the constraints

    Hue range, saturation and lightness bounds — or leave them wide open.

  3. 3

    Generate again

    Hit the button or press the space bar until something catches your eye.

  4. 4

    Copy what you like

    Click any swatch for its HEX, or copy the whole palette at once.

Frequently asked questions

Because most of the RGB cube is desaturated mud. Only a thin shell of it holds the vivid colours people think of as colours, so picking uniformly from the whole volume almost never lands there.

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