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Build a complete brand color palette with primary, secondary, accent, and neutral colors. Export as CSS variables, Tailwind config, or design tokens.
Choosing brand colors is one of the first and most impactful design decisions. A random selection of "colors that look nice" often results in poor contrast, inaccessible text, and a palette that clashes when applied to real UI elements like buttons, alerts, and backgrounds. Professional designers use color theory rules (complementary, analogous, triadic) to build harmonious palettes, but most founders, developers, and small business owners do not have that training.
Our Color Palette Generator helps you build a cohesive brand palette using color theory. Start with a single brand color and generate harmonious companions. Preview your palette on realistic UI components (buttons, cards, text) and check contrast ratios for accessibility. Export as CSS custom properties, Tailwind config, or a shareable link.
Open Color Palette GeneratorNavigate to the Color Palette Generator on OnlineTools4Free.
Pick or enter your main brand color. This is the color people will most associate with your brand — it will appear on buttons, links, and key UI elements.
Select a color harmony rule (complementary, split-complementary, analogous, triadic) and the tool generates colors that work well together according to color theory.
See how your palette looks on buttons, cards, text, and backgrounds. Check that text is readable (WCAG contrast ratios) against every background color.
Copy the palette as CSS custom properties (--color-primary: #...), Tailwind CSS config, or hex values. Share the palette link with your team.
No signup, no upload, 100% private. Works right in your browser.
Open Palette Gen