Random Color Palette Generator

Random color palette generator for fast scheme ideas

This random color palette generator creates a harmonious set of 2 to 8 colors every time you press the spacebar or the Randomize palette button. You lock the swatches you like, shuffle the rest, and copy the result as HEX, CSS, SCSS, Tailwind CSS or JSON. It is free, runs in your browser and needs no signup.

Starting a design from a blank canvas is slow, and a random palette generator removes that first step. A random color scheme generator gives you dozens of options in a minute, so you react to real colors instead of guessing hex codes.

How to generate a random color palette

You generate a random color palette by pressing Space or the Randomize palette button, then locking and exporting what you like. The tool opens with a five-color starter palette, so you can shuffle straight away.

1. Pick a mode in the Harmony mode menu, or leave it on Random hues. Changing the mode creates a new palette at once.
2. Press Space or click Randomize palette to roll a new set.
3. Click the padlock on any swatch you want to keep. Locked colors stay put on the next roll.
4. Use Add color in the Palette colors list to grow the palette up to 8 colors, or remove colors down to 2.
5. Press Z or click Undo if a better palette disappeared. The tool remembers up to 40 steps.
6. Copy a single HEX by clicking it on the swatch, or use Copy palette, Copy CSS, Download PNG or Share link.

Random palette settings you can control

The random palette generator gives you a small set of controls that cover most of a real workflow, from shuffling to export.

• Seven harmony modes: Random hues, Analogous, Monochromatic, Complementary, Split-complementary, Triadic and Tetradic.
• Lock and Unlock all: keep favorite swatches while the others change, then release everything with one click.
• Editable list: type a HEX value or use the color picker for any row, and drag the grip handle to reorder colors.
• Color names: each swatch shows the nearest color name, and the info button opens details for that color.
• Readable labels: the HEX text on each swatch switches between black and white for legibility.
• Export and share: CSS, HEX list, SCSS, Tailwind CSS and JSON code, a PNG image, a palette page and a share link that restores your colors and locks.

Which harmony mode makes the best random palette?

The best harmony mode depends on how much variety you want: Analogous and Monochromatic feel calm, while Triadic and Tetradic feel lively. Random hues gives the widest surprise. The table shows how each mode places hues around the color wheel.

To study these relationships on a wheel, open the Color Harmonies Generator.

How locking colors keeps a random palette on track

Locking a color freezes that swatch and makes the harmony modes build around it. When you lock a color with visible saturation, the other swatches take their base hue and a similar chroma from it. That is how a random palette stays tied to a brand color.

A simple lock-and-shuffle routine

Set the mode to Analogous or Complementary, lock the one color you trust, and press Space repeatedly. Lock a second swatch when a partner color appears. After two or three locks, the remaining swatches usually settle into a scheme that fits.

If every swatch is locked, the tool shows a message and does not randomize. Click Unlock all to start again.

How does a random color palette generator choose colors?

This generator picks hues from the harmony rule you chose, then plans lightness across the whole palette so the colors do not all sit at the same brightness. Colors are sampled in OKLCH, a perceptual space with lightness, chroma and hue. Any color outside the sRGB display range is pulled back inside it.

Why OKLCH? In OKLCH, equal steps in lightness look more equal to the eye than they do in HSL. The result is fewer muddy or neon outliers. The CSS Color Module Level 4 specification defines OKLCH and the gamut mapping idea.

The final output is always a plain 6-digit HEX value, for example #2A9D8F, which equals rgb(42, 157, 143).

Check a random color palette for contrast

A random palette can look balanced and still fail text contrast, so check pairs before you use them for type. WCAG 2.2 requires a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text, as described in the Understanding Contrast (Minimum) page.

Here is a real example from the starter palette:

Dark slate Teal Sand yellow Soft orange Coral red

• #264653 with white text: about 10.1:1, which passes.
• #2A9D8F with white text: about 3.3:1, which fails for normal text but passes for large text. Black text reaches about 6.3:1.
• #E9C46A with black text: about 12.6:1, which passes.

Test any pair with the Contrast Checker, or review the whole set at once with the Palette Accessibility Audit. Color alone should never carry meaning, so a color blindness simulation is a useful next check.

Export a random color palette to CSS, Tailwind or JSON

The Random Palette Code panel shows your palette in five formats, and each tab updates live as you shuffle, lock or edit. Pick CSS, HEX list, SCSS, Tailwind CSS or JSON, then copy with the button in the corner of the code box.

:root {
  --palette-1: #264653;
  --palette-2: #2A9D8F;
  --palette-3: #E9C46A;
  --palette-4: #F4A261;
  --palette-5: #E76F51;
}

The Tailwind CSS tab includes a v4 @theme block and a commented v3 config. The SCSS tab adds numbered variables plus one map. Learn how to use the variables in the MDN guide to CSS custom properties.

Need a full 50 to 950 scale from one swatch? Send it to the Tailwind Scale Generator. Prefer a PNG for a mood board or a client chat? Use Download PNG, or Share link to reopen the same palette with its mode and locks.

Where a random color palette generator helps most

A color palette randomizer helps whenever you need options fast and have no fixed brand colors yet. The same shuffle-and-lock loop works across several jobs.

• UI designers: test five or six candidate schemes for a landing page before opening a design file.
• Front-end developers: grab ready-made CSS variables or a Tailwind theme block for a prototype.
• Illustrators and artists: break out of habitual color choices with unexpected hue combinations.
• Marketers and presenters: download a PNG of a palette for a slide, a social post or a client chat.
• Students: see how a triadic or analogous rule changes a scheme, one roll at a time.

If you want inspiration that is already curated, browse the color palette library at 66Colorful instead of rolling at random.

Random color palette tips and common mistakes

• Roll many times before judging. Early results are samples. Lock the best swatch and keep going.
• Limit the palette to what you need. Five colors are plenty for most interfaces. Eight suits illustration or data charts.
• Assign roles, not just colors. Choose a background, a text color, one primary and one accent before you export.
• Do not skip a contrast test. Mid-lightness swatches are the usual culprits for failed text.
• Do not expect repeatable results. Randomization changes each time. Use Share link or save the HEX list to keep a palette.
• Do not use a random palette for print without proofing. Screen colors can shift in CMYK, so convert and proof before printing.

Once you have a palette you like, turn it into theme variables with the CSS Variable Theme Generator, or expand single colors into lighter and darker steps with the Tint & Shade Scale Generator.