Tool
What the Color Palette Generator does
Color Palette Generator: generates Palette from Seed colour and Scheme.
This generator reads Seed colour and Scheme and produces Palette. There is no submit step; the numbers move as you adjust them.
It is mostly used by developers translating a value into CSS. The same colour is written half a dozen ways, and design tools rarely agree on which.
Nothing leaves the tab. You can watch your browser network panel while you use it and see for yourself.
Each field is explained further down, along with the method and a worked example that uses the default values.
What do the Color Palette Generator fields mean?
The Color Palette Generator uses 2 inputs. The starting figures are ordinary, not edge cases, so they make a sensible baseline.
| Field | What to enter | Default |
|---|---|---|
| Seed colour | optional | #2563eb |
| Scheme | choose from Analogous, Triadic, Tetradic or Complementary | Analogous |
How does the Color Palette Generator work?
Each output is derived from the inputs above in a single pass; there is no hidden state carried between runs, so the same inputs always give the same generated output.
If something is off you are told which field, not given a generic failure.
What a typical run looks like
You provide: Seed colour and Scheme
What happens: the file is read into memory by your browser, processed locally, and offered back as a download. It is never uploaded.
You get back: a new file plus a brief account of what happened to it, shown in the panel.
How long this takes is a property of your computer, not of our infrastructure, and file size is bounded by browser memory.
Read next: Colour Contrast and WCAG: The Ratio, the Thresholds, What They Miss
How to use it
- Set Seed colour.
- Pick a value for Scheme: the options are Analogous, Triadic, Tetradic or Complementary.
- Results update continuously rather than on submit.
- Check Palette on the right.
- If you need a record, Copy Link saves the inputs and Print produces a clean page.
What this tool does not do
- Colours render differently across displays; the values are exact but the appearance is not guaranteed.
- Conversions between colour spaces with different gamuts are approximate at the edges.
- Batch work is not supported; each run handles one set of values.
Frequently asked questions
Seed colour and Scheme, nothing else. A starting value is in place for each, so you can change one value at a time and watch how the result responds.
No. The work runs in JavaScript inside this page, so your values never leave your device. You can confirm it in your browser network tab.
No cost and no account. Use it as often as you like.
The formula is shown above precisely so you do not have to take the accuracy on trust.