How is a random color generated?

The generator picks a random hue, saturation and lightness in HSL space and converts the result to HEX and RGB. Using HSL (instead of raw RGB) avoids producing too many low-saturation or very dark colors, so results stay visually pleasing.

What is a seeded random color?

A seeded random uses a deterministic pseudo-random number generator so the same seed always produces the same color. This is useful for design systems, testing and generative art where reproducibility matters.

Are the random colors accessible?

Random colors are random — they may or may not meet WCAG contrast in any specific pairing. Always test the foreground/background pair with our contrast checker before shipping.

Can I generate a random gradient?

Yes. Switch the mode to Gradient and the tool produces a random multi-stop gradient with a matching CSS declaration you can copy.

Random Color Generator — Colors, Palettes & Gradients

Mode

Seed (optional) Use a seed to make results reproducible across visits.

How random colors are generated

The generator picks values in HSL space rather than raw RGB. HSL makes it easy to keep saturation and lightness within pleasant ranges, so the output contains more useful colors than pure RGB randomness.

Modes explained

Mode	Distribution	Typical output
Color	Hue 0–360°, S 40–95%, L 30–85%	Standard random colors
Palette	5 harmonized colors	Coherent mini-palette
Gradient	3-stop multi-hue gradient	Ready CSS gradient
Pastel	Hue 0–360°, S 35–60%, L 78–88%	Soft, muted colors
Neon	Hue near accent anchors, S 95–100%, L 55–65%	Vivid, high-energy colors
Dark	Hue 0–360°, S 20–65%, L 8–20%	Deep background colors
Light	Hue 0–360°, S 30–70%, L 88–96%	Very light accents

Seeded randomness

A seeded generator uses a deterministic algorithm, so the same seed always yields the same sequence of colors. This is used for:

Design systems that need fixed demo colors per component
Testing — the same input always produces the same output
Generative art where a seed becomes a shareable parameter

Frequently asked questions

Are random colors really random?

They are pseudo-random. The tool uses the Web Crypto API when available for high-quality randomness, and falls back to Math.random(). When a seed is provided, it uses a deterministic PRNG so results are reproducible.

Why do random colors look better here?

Because hue, saturation and lightness are sampled from tuned ranges instead of raw RGB channels. Pure RGB randomness produces many nearly-black, nearly-white and muddy colors that are not useful in design.

Can I save a random color?

Yes. Every generated color is added to your recent colors. You can also favorite it or open it in the color picker to fine-tune it.

Does the generator upload anything?

No. Everything happens locally in your browser. Your seed and generated colors never leave your device.

Related tools

Palette Generator

Generate coherent palettes.

Gradient Generator

Build CSS gradients from random colors.

Color Picker

Fine-tune any random color.

Contrast Checker

Check readability of random pairs.