Overview
Choosing one colour is easy. Choosing five that can share a page without quarrelling is the job that eats afternoons. Colour harmony isn't pure taste — it follows geometry. Colours sit on a wheel, and certain arrangements of points on that wheel reliably look balanced to human eyes: neighbours that blend, opposites that spark, triangles that stay lively without tipping into chaos. This generator does that geometry honestly, so you start from a structure that works instead of from a blank swatch.
You bring a base colour — your brand orange, a client's navy, the green from a photograph — and pick a harmony rule. The tool computes the other four colours from positions on the wheel and steps along the lightness scale, so the five arrive as a working set: a lead colour, supporting colours, and enough range in depth to cover backgrounds, text, borders and accents.
What is a colour harmony?
A harmony is a recipe that selects colours by their positions relative to each other on the colour wheel. Analogous schemes take neighbours on the wheel, which is why calm interfaces and nature photography lean on them. Complementary schemes pair a colour with its direct opposite for the strongest contrast available. Triadic schemes space three hues evenly — 120 degrees apart — and stay vivid even when each colour is muted.
Split-complementary softens the opposite pairing by taking the two colours flanking the true opposite, keeping energy with less clash. Monochromatic schemes stay on a single hue and let lightness do all the talking, which is nearly impossible to get wrong. None of these is 'the correct answer' — they're starting shapes. A good palette usually keeps the harmony's skeleton while adjusting individual members: a touch less saturation here, a step darker there.
Features
- Five harmony rules. Analogous, complementary, triadic, monochromatic and split-complementary — the classic geometries.
- Any base colour. Start from a picker, a brand colour, or a colour sampled from your imagination.
- Five-colour output. A complete working set: lead, supports, and depth for text, backgrounds and accents.
- Click-to-copy HEX. Tap any swatch to copy its hex code straight to your clipboard.
- Copy-all button. Grab the entire palette's codes in one go for pasting into your stylesheet.
- Surprise mode. Press Space anywhere outside a text field for a fresh palette from a random base colour.
- Calculated locally. All the colour maths runs in your browser — your palettes stay yours.
Benefits
- Skip the blank-swatch panic. Start from geometry that works instead of guessing combinations.
- Designer vocabulary, zero jargon. The rules are named and explained, so you learn while you pick.
- Ready for real use. Five colours with depth range cover everything a page needs.
- Free and unlimited. Generate as many palettes as the project demands — no accounts, no caps.
Who can use it
Web designers building a site's visual system from a single brand colour. Developers who can code but freeze when choosing colours. Bloggers and shop owners refreshing their look without hiring a designer. Students learning how colour relationships work — the wheel geometry here is a genuinely good teacher. Even painters and interior decorators use harmony rules to test combinations before committing. If you've ever stared at a colour picker for twenty minutes, this page hands you five colours that already agree with each other.
How to use
- Pick your base colour — your brand colour, a favourite, or anything that caught your eye.
- Choose a harmony rule: analogous for calm, complementary for punch, triadic for energy, monochromatic for safety.
- Press Generate and review the five-colour set.
- Click any swatch to copy its HEX code, or use copy-all for the whole set.
- Not feeling it? Press Space for a surprise palette, or tweak the base colour and regenerate.
Frequently asked questions
Which harmony rule should I pick?
Match the rule to the mood. Analogous (neighbours) for calm, cohesive designs — portfolios, wellness, editorial. Complementary (opposites) for maximum punch — calls to action, sports, entertainment. Triadic for playful energy that still holds together. Monochromatic when you want elegance with zero risk — one hue, five depths. Split-complementary as the diplomat's choice: lively like complementary, but easier to live with. There's no wrong answer; generate one of each and compare.
What do I actually do with five colours?
Assign jobs: the darkest becomes text, the lightest becomes backgrounds, the base colour carries the brand, and the remaining two handle accents, borders and highlights. That division is why the generator varies lightness deliberately — a palette of five mid-tones would leave you with nowhere to put text. Paste the HEX codes into your stylesheet or design tool, assign the roles, and the page starts designing itself.
Can I adjust a colour after generating?
Absolutely — treat the palette as a starting point, not a verdict. Nudge a swatch darker for better text contrast, desaturate one that's shouting, or swap the base and regenerate around a different anchor. Professional palettes are almost always tuned after the harmony rule does the rough work. The generator's job is to get you to 'nearly right' in seconds; your eye does the final ten percent.
Why five colours and not three or ten?
Five hits the practical sweet spot. Three rarely covers all the roles a real interface needs — background, text, primary brand, secondary accent, plus something for borders or states. Ten is more than most people can deploy consistently, and the extras go unused. Five gives you a lead, two supporters, and light/dark anchors: enough to design a complete page without decision fatigue.
What is a HEX code?
It's the web's way of writing a colour: a hash sign followed by six hexadecimal digits, like #FF7A35, encoding the red, green and blue components. Every design tool and stylesheet on earth understands it, which is why the generator copies codes in this format. You don't need to read hex to use it — just paste the code wherever a colour is expected and the exact shade appears.
Can I use these palettes commercially?
Yes — colours themselves aren't ownable, and everything here is computed fresh from maths, not copied from anyone's brand guidelines. Use the palettes in client work, products, templates you sell, anything. The one thing to avoid is lifting an entire famous brand's exact palette and trading on the association — but that's a trademark question about imitation, not about the colours, and generating your own set sidesteps it entirely.
Conclusion
Good colour isn't a gift — it's geometry plus a little tuning. Start from a colour you like, pick the harmony that matches the mood, and take five colours that were designed to coexist. Copy the codes, assign the roles, and the hardest part of the design is already behind you.