Color Random Palletes Generator
A Color Random Palettes generator mixes a set of base colors to produce ready-to-use color palettes for UI, branding, illustrations, or layouts. Your generator uses the following palette of base colors: Red, Orange, Yellow, Green, Cyan, Blue, Purple, Pink, White, Gray, Brown and Black. The tool can randomly pick, blend and arrange these colors into harmonious groups - from bold high-contrast palettes to soft, muted schemes - making it fast to explore visual directions.
The generator typically follows a few steps - select, mix, adjust and output. - Select - choose N colors from the base set (pure random, weighted, or constrained). - Mix - optionally blend selected colors by interpolating in RGB, HSL or a perceptual space like Oklab to create intermediate shades. - Adjust - tweak lightness, saturation or add neutrals (white, gray, black) to balance the palette. - Output - provide the palette as CSS variables, hex array, JSON or a downloadable swatch.
- Pure random - pick N distinct base colors at random. This yields unpredictable, sometimes high-contrast palettes. - Weighted random - favor certain hues (for example favor warm colors or neutrals) by assigning weights. - Constrained random - force inclusion of at least one neutral (white/gray/black) or one accent (bright color) for usability. - Blend-based - select two or more base colors and produce blends by averaging in HSL or Oklab to create smooth transitional palettes.
A good palette usually has a dominant color, one or two supporting colors, and one or two neutrals. When generating palettes: - Choose 1 dominant color (largest visual area). - Add 1-2 accents (for buttons, CTAs, highlights). - Include neutral(s) for backgrounds and text contrast (white, gray or black). - Check contrast between text color and background colors - high contrast ensures readability.
- RGB averaging - simple but not perceptually uniform. Good for quick tints and shades. - HSL interpolation - intuitive for adjusting hue, saturation and lightness separately - useful to generate lighter/darker versions. - Oklab / Oklch interpolation - perceptually uniform, better for visually even blends and consistent lightness steps. Use the method that matches your goal - perceptual spaces for visual correctness, HSL for simple hue shifts.
Always verify color pairs against WCAG contrast ratios. For readable body text aim for at least 4.5:1 contrast. If your random palette contains low-contrast combinations, the generator can suggest tweaks - darken or lighten one color, or automatically choose black/white text for better contrast. Also test color-blindness friendliness by ensuring essential information does not rely on hue alone.
Common outputs from a generator include: lists of HEX codes, CSS variables, SCSS maps, or JSON objects for design systems. Provide export options so designers and developers can paste results directly into projects.
Below are example palettes produced from mixing the base color set. Each palette lists colors from dominant to accent to neutral.
Palette 1 - Warm & Bold #E63946 (Red) #F8961E (Orange) #F4D35E (Yellow) #F8F9FA (White) #6C757D (Gray)
Palette 2 - Cool & Calm #3AB0FF (Cyan) #1E88E5 (Blue) #7C4DFF (Purple) #EAEFF2 (White) #2E2E2E (Black)
Palette 3 - Earthy Neutrals #8D6E63 (Brown) #6B8E23 (Green) #FFD54F (Yellow) #F5F5F5 (White) #333333 (Black)
Palette 4 - Playful Pastel #FF8BA7 (Pink) #9B5DE5 (Purple) #3AB0FF (Cyan) #FFFFFF (White) #B0BEC5 (Gray)
Palette 5 - High Contrast CTA #2B2D42 (Black-ish) #EF233C (Red) #FF9F1C (Orange) #FFFFFF (White) #8D99AE (Gray)
A simple generation algorithm - pick, optionally blend, ensure neutral and test contrast:
function generatePalette(baseColors, size = 5) {
// 1. pick one dominant (weighted or random)
dominant = pickWeighted(baseColors);
// 2. pick supporting colors
supports = pickRandom(baseColors - dominant, size - 2);
// 3. ensure a neutral present
if (!supports.includes('White') && !supports.includes('Gray') && !supports.includes('Black')) {
supports[ supports.length - 1 ] = pickNeutral(baseColors);
}
// 4. optional - blend adjacent support with dominant to make intermediate shades
palette = [dominant].concat(supports).map(color => maybeBlend(color, dominant));
// 5. accessibility - if contrast fails for text, adjust lightness in HSL or Oklab
palette = fixContrastIfNeeded(palette);
return palette;
}
- Seeded randomness - reproduce palettes by using a seed value. - Palette locking - allow the user to lock colors they like and re-generate the rest. - Harmony rules - offer modes like complementary, analogous, triadic using the base color choices. - Blend sliders - let users control how much mixing occurs between selected base colors. - Export options - CSS variables, JSON, ASE for design apps, or downloadable PNG swatches.
- Provide sensible defaults - one dominant, two accents, one neutral. - Offer contrast checks and auto-fixes to maintain accessibility. - Let users choose mixing space - HSL for quick edits, Oklab for perceptual accuracy. - Include presets for common moods - warm, cool, pastel, high-contrast, muted. With these features, your Color Random Palettes generator will become a versatile tool for rapid creative exploration and production-ready color systems.