Color Palette Generator

Start from any color and get a balanced five-color palette in one tap — then lock the keepers, regenerate the rest, and export straight to your stylesheet.

How It Works

A color palette is a small family of colors chosen to work together — the background, headings, buttons, and accents of a website, or the walls, sofa, and cushions of a room. Picking colors one by one by gut feeling usually ends in a clash, because a good palette is not a pile of pretty colors: it is a set of colors that share a hidden relationship. That relationship lives on the color wheel, and every harmony rule the generator offers is simply a different way of walking around it.

The color wheel arranges every hue in a circle measured in degrees: 0° is red, 120° is green, 240° is blue, and 360° wraps all the way back to red. When you enter a base color, the generator converts it to HSL, reads off its hue angle, and then applies geometry. Rotating the hue while keeping saturation and lightness in a similar range is what makes the resulting colors feel related even when they look very different — and converting the rotated values back to hex gives you codes you can paste straight into your project.

Complementary takes your hue and adds 180°, landing on the exact opposite side of the wheel. Opposites grab the eye — think blue and orange sports branding — which makes this the highest-energy harmony. The classic guidance: let one color star and use the other sparingly, because two complements at full strength and equal area tend to vibrate against each other.

Analogous picks the neighbors: your hue plus and minus about 30°. These are the combinations nature uses everywhere — forest greens melting into each other, ocean blues fading into teal — so the result feels calm and cohesive with almost no effort. Because analogous palettes can feel a little sleepy, designers usually anchor them with a neutral for text and let one of the hues dominate.

Triadic spaces three colors evenly, 120° apart, forming a triangle on the wheel. It is vibrant like a complementary scheme but more balanced, because no two colors are direct opposites. The trick is hierarchy: choose one dominant color and let the other two appear as accents, or the three will compete for attention.

Split-complementary keeps your base color and pairs it with the two colors flanking its complement — base hue plus and minus roughly 150°. You get nearly the punch of a direct complement, but the two partners are gentler and far easier to balance. Many designers consider this the most forgiving way to get strong contrast without a headache.

Tetradic (sometimes called rectangular) uses two complementary pairs at once — for example your hue, plus 60°, plus 180°, plus 240°. It is the richest option and the hardest to wield: give one color about 60% of the stage, a second about 30%, and let the last two appear only as small accents, or the design turns chaotic.

Monochromatic uses a single hue at many lightnesses. Tints mix the base color toward white, shades mix it toward black, in even steps from one end to the other. A monochromatic palette cannot clash — every color is literally the same hue — which makes it the safest choice for beginners. Its only real risk is dullness, and that is fixed with texture, typography, or a single contrasting accent.

In practice the tool works like this: set a base color (or let it suggest one), choose a harmony rule, and shuffle the unlocked colors until the family feels right. Lock any color you love so the next shuffle keeps it and re-rolls the rest around it. When the palette clicks, export the hex codes or ready-made CSS variables and paste them into your stylesheet — your recent palettes stay in the browser’s history so you can revisit yesterday’s experiments.

One more thing a finished palette needs: it has to work for everyone, not just for people with perfect color vision. That is why every harmony above keeps lightness varied across its colors — light, mid, and dark values side by side — so the colors stay distinguishable even for viewers who perceive hue weakly. It is also why working palettes always include neutrals: a near-white for backgrounds, a charcoal for text, and a mid gray for borders give your hues room to breathe and keep everyday reading comfortable. A palette of five pure hues and nothing else is a poster, not a design system.

Worked Example: Building a Palette From #336699

Common Palette Mistakes

• Five equally loud colors. A palette where every color shouts at full saturation is exhausting to look at. Give the palette a volume knob: one or two saturated colors, the rest quieter.
• Everything at the same lightness. Colors that differ only in hue blur together for many viewers and turn to identical gray when printed without color. Run the squint test — or convert your design to grayscale — and make sure light, mid, and dark values are all represented.
• Pairing palette colors as text and background without checking. Two colors can harmonize beautifully and still be unreadable together. Every text/background pair from your palette belongs in the contrast checker before it ships.
• Adopting a trendy palette for a whole brand. What looks fresh on a mood board may fight your product photos, your logo, or your users’ expectations. Test the palette inside your real layout, with real content, before committing.
• Too many colors. Five colors plus neutrals cover nearly every design. Ten colors is not a palette, it is a box of crayons — and maintaining consistency across them becomes a part-time job.
• Red-green pairings without a backup cue. About 1 in 12 men has red-green color blindness. If red versus green carries meaning (errors versus success), add an icon or label so the meaning survives without color.
• Skipping neutrals. Every working palette needs near-whites, grays, or near-blacks for text, borders, and breathing room. Pure hues everywhere feels like shouting; neutrals are the pauses between sentences.
• Keeping the first shuffle. The generator’s first suggestion is a starting point, not a verdict. Shuffle a dozen times, lock the colors that spark something, and let the tool re-roll around them — the tenth shuffle is almost always better than the first.

Tips for Better Palettes

• Follow the 60-30-10 rule. Roughly 60% of the design in a dominant color, 30% in a secondary, 10% in an accent. The rule is old because it works: it guarantees hierarchy no matter which hues you pick.
• Lock your brand color first. If one color is non-negotiable, lock it in the generator and shuffle everything else around it. Building outward from a fixed point beats rebuilding from scratch.
• Test in grayscale. If the design still reads clearly with all color removed, your lightness structure is sound — and so is your palette’s accessibility for color-blind users.
• Preview on light and dark. A palette tuned for a white page can fall apart on a dark card. Check your colors on both before finalizing.
• Export as CSS variables. Paste the generated variables once, then reference them everywhere. When the palette evolves, you update five lines instead of five hundred.
• Steal from photos. Stuck for a base color? Sample one from a photo you love — a landscape, a fabric, a meal — and let the harmony rules do the rest. Nature has already done the hard part.
• Sleep on it. Shuffle ten palettes, save the three finalists to history, and look again tomorrow. The one that still feels right in the morning is the winner.
• Write down what each color is for. Next to every hex in your style guide, note its job — primary button, link, success message, chart series three. A palette with assigned roles stays consistent as the team grows; a list of pretty codes slowly drifts into chaos.

Frequently Asked Questions

Related Calculators

Last reviewed: November 3, 2026 · Formulas verified for accuracy.