Generate harmonious color palettes for your website. Get CSS hex codes, Tailwind classes, and WCAG contrast check. Free tool.
Color is the first thing visitors notice about your website — before they read a single word. A cohesive color palette built on color theory signals professionalism and builds trust instantly. Our generator creates harmonious palettes from one base color, checks WCAG accessibility, and exports CSS variables ready for your project.
Four harmony types for web palettes: Monochromatic: one hue at different lightness levels — clean and minimal. Analogous: adjacent colors on wheel (blue, blue-green, green) — natural and harmonious. Complementary: opposite colors (blue and orange) — high contrast, energetic. Triadic: three evenly spaced colors on wheel — balanced yet colorful. For most business websites: monochromatic or analogous with one accent complement is most professional and easy to execute.
Accessibility is both ethical and SEO-beneficial — Google rewards accessible sites. WCAG 2.1 standards: Normal text (under 18pt): minimum 4.5:1 contrast ratio. Large text (18pt+ or 14pt+ bold): minimum 3:1 contrast ratio. UI components and graphics: minimum 3:1. AAA standard (stricter): 7:1 for normal text. Common failure: gray text on white backgrounds. Light gray (#999999) on white fails AA — use darker gray (#767676 minimum).
Best practice website color approach: Choose 1-2 brand colors that reflect your industry. Use white or very light gray as primary background. Use dark gray or near-black for body text (pure black is harsh). Reserve brand color for CTAs, links, and accents. Check all text-background combinations for 4.5:1+ contrast. Test in grayscale to ensure hierarchy works without color.
The 60-30-10 rule distributes color: 60% dominant color (white, light gray, or neutral) — backgrounds and large areas. 30% secondary brand color — sidebar, header, secondary elements. 10% accent color — CTA buttons, links, highlights. This ratio creates visual balance: enough consistency to feel cohesive without being monotonous, and enough contrast to guide the eye to important elements.
Primary color selection process: Step 1: Identify your industry color conventions (blue for finance, green for health). Step 2: Define your brand personality (bold vs subtle, modern vs classic). Step 3: Check competitor colors — differentiate or align based on strategy. Step 4: Test at multiple shades of your chosen hue. Step 5: Check accessibility on white background. Step 6: Generate full palette using our tool.
Yes — every FreeFixo tool, including the Color Palette Generator — Build Your Website Color System, is 100% free with no paywall, no premium tier, and no usage limits. You do not need to create an account, enter a credit card, or share an email.
The Color Palette Generator — Build Your Website Color System uses the same formulas, rates, and reference data that financial planners, professionals, and government sources publish. Results are estimates intended for planning and education — for situations involving large sums or legal consequences, confirm with a qualified professional before acting.
No signup is ever required. The Color Palette Generator — Build Your Website Color System runs entirely in your browser — your inputs are never sent to a server, and we do not store, track, or share your data. Open it, get your answer, close the tab.