Color Palette Generator
Generate harmonious color palettes. Export as CSS variables, Tailwind, or SCSS.
Base Color
Color Harmony Modes
Generated Palette
Export Format
:root {
--color-1: #3cf6af;
--color-2: #3ce0f6;
--color-3: #3c83f6;
--color-4: #523cf6;
--color-5: #af3cf6;
}What is a Color Palette Generator?
A Color Palette Generator is a web tool that creates harmonious, theory-based color schemes for web projects by generating palettes from a base color, random input, or image extraction. It outputs HEX, RGB, and CSS-compatible values you can immediately apply to backgrounds, typography, buttons, and UI components. Developers use it to ensure visual consistency, meet WCAG accessibility standards, and export ready-to-use CSS variables, Tailwind config values, or SCSS maps without manual color math.
How to Use This Tool
- 1 Enter a base color using a HEX value or color picker, or press the spacebar to generate a random harmonious palette using complementary, analogous, or triadic color theory rules.
- 2 Adjust individual swatches by locking colors you want to keep and regenerating the rest, or fine-tune hue, saturation, and brightness sliders to match your brand requirements.
- 3 Run the built-in accessibility checker to verify contrast ratios meet WCAG AA (4.5:1 for text) or AAA standards, and flag any swatch combinations that would produce unreadable text.
- 4 Export the finalized palette in your preferred format — CSS custom properties for vanilla HTML, a Tailwind theme extension object, or SCSS variable map — then paste directly into your project's stylesheet or config file.
Common Use Cases
Brand Theming with CSS Variables
Generate a 4-5 color palette and export it as CSS custom properties into your :root block, applying the 60-30-10 rule so backgrounds, sections, and CTAs maintain consistent visual hierarchy across every page.
Image-Based Design Extraction
Upload a product photo, hero image, or brand asset to extract its dominant colors, then build a UI palette that visually complements the imagery for landing pages or campaign microsites.
Dark Mode Palette Generation
Generate paired light and dark variants for each role color, then wire them into CSS media queries using prefers-color-scheme so your theme switches automatically without duplicating component styles.
Tailwind Design System Setup
Export your palette directly as a Tailwind theme.extend.colors object, giving your entire project named utility classes like bg-primary or text-accent that stay consistent across components and team members.
Tips & Best Practices
- → Limit your working palette to 4-5 colors maximum — one primary, one or two neutrals, and one or two accents — then generate tints and shades from those base values rather than adding entirely new hues.
- → Always assign semantic names to exported variables (e.g., --color-bg-surface, --color-text-muted, --color-action-primary) instead of descriptive names like --color-blue, so the palette stays refactorable when colors change.
- → Use the accessibility checker before committing to any palette: a visually appealing low-contrast pair like light gray text on a white background will fail WCAG AA and make your content inaccessible.
- → Avoid hardcoding HEX values directly in component styles — paste your exported CSS variables or Tailwind config once at the project level, so future palette updates propagate everywhere in a single edit.
Frequently Asked Questions
What is a color palette generator and how does it work? +
A color palette generator is a tool that produces sets of harmonious colors using color theory algorithms (complementary, analogous, triadic) or AI models trained on real design data. You input a base color or let it generate randomly, and it calculates mathematically balanced companions. The result is a palette with HEX or RGB values ready for direct use in web projects.
How do I use a color palette generator online to export CSS? +
After generating your palette, look for the export or copy button and select the CSS variables option, which outputs a :root block with named custom properties like --color-primary: #3b82f6. Paste this block into your global stylesheet and reference the variables throughout your components using var(--color-primary) syntax for easy site-wide updates.
Is this color palette generator free to use? +
Yes, the core palette generation, accessibility checking, and export features are available at no cost. You can generate unlimited palettes, export to CSS, Tailwind, or SCSS formats, and run contrast ratio checks without creating an account or paying a subscription.
How many colors should a web design palette have? +
For most web projects, 4-5 colors is the practical sweet spot: one dominant background color, one or two neutral text and surface colors, and one or two accent colors for buttons and interactive elements. Using more than 5-7 distinct hues creates visual noise; instead, generate tints, shades, and opacity variants from your core palette to add depth without adding complexity.
How do I check if my generated palette meets WCAG accessibility standards? +
Use the built-in contrast ratio checker by selecting a foreground and background color pair from your palette — the tool will display the ratio and indicate whether it passes WCAG AA (4.5:1 for normal text, 3:1 for large text) or AAA (7:1) thresholds. You should test every combination where text appears over a colored surface, including hover and disabled states, before finalizing the palette for production.
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