Press the space bar or tap the Generate button and a new palette appears instantly. Lock any swatches you want to keep, then keep shuffling — only the unlocked colors change. You can also switch the harmony mode (random, monochrome, analogous, complementary, or triadic) to control how the colors relate to each other on the color wheel.

Yes. Every swatch has a lock button. Locked colors never change when you shuffle, and in harmony modes the first locked color becomes the anchor for the whole scheme — so you can lock your brand color and generate matching monochrome, analogous, complementary, or triadic companions around it.

Your palette is saved into the page URL as you work, in the form ?colors=aabbcc-ddeeff-... Copy the link from the address bar and send it to a teammate or client — opening the link restores the exact same palette, which they can then tweak, reshuffle, or export themselves.

Anywhere from 3 to 8 colors. Five is the default because it maps neatly onto most design systems: a primary, a secondary, an accent, a background, and a text color. When you increase the count, your existing colors are preserved and only the new slots are generated.

Yes. The CSS export produces a ready-to-paste :root block with --color-1 through --color-n custom properties. The JSON export includes hex, RGB, and HSL values for every swatch, and the PNG export renders a labeled color strip you can drop into mood boards, briefs, or slides.

It is completely free with no sign-up. All palette generation, harmony math, and exports run entirely in your browser — nothing is uploaded and no data ever leaves your device.