Random Color Generator

Generate random hex, RGB, or HSL color values — great for design prototypes and mock data

Count:

Format:

Generated output

Output will appear here...

What is Random Color Generator

Written by Giorgos Kostas. Last reviewed: April 18, 2026

Random Color Generator mints random colors in hex, RGB, or HSL format. It outputs one color per line so you can paste directly into CSS, design tools, or seed data.

Use it to brainstorm palette directions, generate placeholder chart colors, or seed mock visuals without hand-picking every swatch.

Why use it

Prototype with random swatches when a palette isn't finalised.
Seed mock dashboards and charts.
Brainstorm new palette directions.
Generate placeholder avatar backgrounds.
Stress-test color-contrast checkers.

Features

Hex, RGB, HSL formats
Up to 1,000 colors per batch
Copy-ready CSS values
Random Color is handled entirely in-browser
Great for prototyping

How to use Random Color Generator

Pick format. Hex, RGB, or HSL.
Set count. Up to 1,000 colors.
Run. Copy the palette.

Example (before/after)

Input

Output (format=hex, count=3)

#7fbc3a
#4a1e99
#e3b070

Common errors

Low contrast

Random colors may fail contrast checks.

Fix: Validate with a contrast checker before using in UI.

Too similar

Pure-random palettes can look muddy.

Fix: Mix this with the Color Palette Generator for harmonised results.

FAQ

Which formats are supported?

Hex (#rrggbb), CSS rgb(), and CSS hsl().

Are colors harmonised?

No — each color is uniformly random. Use the Palette Generator for harmony.

How many per batch?

Up to 1,000 colors.

Do they include alpha?

Not in this tool — use rgba-focused tools for transparency.

Is input uploaded?

No — everything runs client-side.

Related tools

Pair with palette, shades, and contrast tools. You can also browse the full Random Content Generators category for more options.

Color Palette Generator

Generate harmonious color palettes

Color Shades Generator

Generate shades and tints of a color

Color Tint Generator

Generate tints of a color

Color Contrast Checker

Check WCAG AA and AAA contrast ratios for text and background color combinations

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Convert HEX color to HSL

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