Color palette generator tools help you build cohesive sets of colors for websites, apps, and brand projects in one place. This free, browser-based tool lets you generate harmonious palettes from a base color using complementary, triadic, analogous, and other color theory rules. No signup needed. Export your palette values in HEX, RGB, or HSL formats ready to use.
Color Palette Generator is a free browser-based tool that creates harmonious multi-color palettes from any base color using established color theory principles. Users pick a base color and select a harmony scheme: complementary (the color and its opposite on the color wheel), triadic (three equally spaced colors), analogous (colors adjacent on the wheel), or split-complementary (the base plus the two colors adjacent to its complement). The tool generates the palette and displays each color with its HEX code ready to copy. Harmonious color palettes are the foundation of effective visual design in web interfaces, branding, illustration, and data visualisation. The tool runs entirely in the browser with no server communication. No account or installation is required, and all generated palettes can be copied immediately for use in CSS, design tools, or color systems.
Color Palette Generator is most valuable at the start of a new project when establishing the primary, secondary, and accent color relationships. Rather than selecting colors individually and testing whether they work together, the tool derives mathematically balanced relationships from a single chosen hue. This is particularly useful for developers and designers who have strong technical skills but want a reliable starting point for color decisions without deep color theory expertise. The four supported harmony schemes cover the most common design needs: complementary palettes create high-contrast two-color combinations useful for call-to-action elements and emphasis; triadic palettes provide balanced three-color systems common in brand color sets; analogous palettes produce serene, cohesive color families suited to backgrounds and UI chrome; split-complementary palettes add more variety than a pure complementary pair while remaining visually balanced. The generated HEX codes can be copied directly into CSS custom properties to create a design token system that applies the palette consistently across a project. For exploring how the generated palette looks in practice, combining the output with Contrast Checker ensures that text and background color combinations in the palette meet WCAG accessibility requirements. The tool is free and runs entirely in the browser without installation.