A color palette generator for when you have one color and need colors that go with it — based on color theory rather than guesswork. Pick a base color with the color picker or by typing a HEX value (e.g. #3b82f6), and it derives harmonious schemes from the color wheel automatically. Choose from six harmonies: complementary (2 colors) for high-contrast pairs, analogous (5 colors) for a soft, cohesive look, triadic (3 colors) evenly spaced around the wheel, tetradic (4 colors), split-complementary (3 colors) for a gentler contrast, and monochrome (5 colors) that keeps the hue and varies only the lightness. Switching the harmony updates the result instantly so you can compare two-color, three-color and four-color combinations side by side. Each color is shown as a large swatch — click it to copy its HEX code, or use "Copy all" to grab the whole palette at once. Great for picking colors for websites, slide decks, banners, logos and icons, or for choosing the colors behind a gradient. Everything runs in your browser: the colors you pick are never uploaded, stored, or sent to a server. Take the colors you land on straight into our CSS gradient tool or color code converter.