Free Online Color Palette Generator
Our advanced color palette generator helps you create professional color schemes from any HEX code. Features harmonies, variations, live UI previews, contrast checking, and code exports.
Color Palette Generator
Active Harmony: Analogous
Interact with the color picker to instantly update the 18 live designs.
Live Preview
Harmonies
Analogous
Complementary
Split Complementary
Triadic
Tetradic
Variations
Shades
Tints
Tones
Accessibility & Contrast
On White
4.47:1On Black
4.70:1Blindness Simulator
Protanopia
Deuteranopia
Tritanopia
Achromatopsia
Export Code
Updates automatically with your selection:root {
/* Light Mode */
--color-primary: #63adf1;
--color-secondary: #6389f1;
--color-accent: #6366f1;
--color-surface: #8363f1;
}
@media (prefers-color-scheme: dark) {
:root {
/* Dark Mode Overrides */
--color-surface: #0f172a;
/* Text inversion handled via CSS utility classes */
}
}Free Online Color Palette Generator
Why Use Our Color Palette Generator?
Staring at a blank canvas is hard. Choosing a single color is easy, but building a complete, harmonious color system around it is a challenge for even the most experienced designers. ToolCompanion solves this problem with our advanced Color Palette Generator. We designed this tool to be more than just a randomizer; it is your intelligent tool companion for building professional design systems. Whether you are starting with a specific hex code or just exploring, our engine automatically calculates the math behind color theory to generate perfect schemes every time. From branding projects to UI development, this is the only palette generator you will ever need.
Interactive Real-World UI Visualizer
Most generators just show you a row of colored boxes. ToolCompanion goes further. Our unique "Real-World Visualizer" instantly applies your generated palette to a mock website interface, dashboard, and mobile app view.
- Click to Apply: Hover over any harmony or variation strip, and you'll see an "Apply to Preview" button. Click it, and watch the UI mockup instantly transform to use those exact colors.
- See It Live: You don't have to imagine how your color palettes will look; you can see them in action on buttons, cards, and charts immediately. This saves hours of trial and error.
Maximum Privacy & Speed
Your design ideas are your intellectual property. Unlike cloud-based tools that might store your data, our color palette generator operates 100% client-side in your web browser. Your selected colors and generated themes never leave your device, ensuring your workflow remains private, secure, and lightning-fast.
Master Color Accessibility
In modern web design, accessibility is not optional. Our tool includes a built-in Contrast Checker that automatically tests your palette against WCAG AA and AAA standards. Furthermore, our advanced Blindness Simulator lets you view your palette through the eyes of users with Protanopia, Deuteranopia, and other vision deficiencies. This ensures your design is beautiful and usable for everyone.
Developer-Ready Exports
Stop wasting time manually typing codes. Once you’ve created the perfect scheme, our tool offers "Advanced Code Export." With a single click, you can generate the code for CSS Variables, Tailwind CSS config, SCSS, JSON, Android XML, and Swift. It bridges the gap between design and development instantly.
How to Generate a Color Palette
Choose a Base Color
Explore Harmonies
Interact & Visualize
- Hover over any color strip (Harmony or Variation).
- Click "Apply to Preview" to see that specific palette applied to the UI mockups at the top right.
- Click "Export" on any strip to copy the HEX codes for that specific row.
Check & Finalize
Understanding Color Harmonies in Design
A colour palette generator uses algorithms based on the color wheel to ensure harmony. Here is how to use the different modes provided by ToolCompanion:
Analogous Palettes
These colors sit next to each other on the wheel.
- Vibe: Calming, natural, and cohesive.
- Best For: Backgrounds, sidebars, and strictly corporate branding where you want a unified look without high contrast.
Complementary Palettes
This uses your base color and its exact opposite.
- Vibe: Bold, energetic, and high-contrast.
- Best For: Creating a "Pop" color. Use the base color for your layout and the complementary color for "Buy Now" buttons or alert messages.
Split-Complementary
A variation of complementary that uses the two colors adjacent to the opposite.
- Vibe: Vibrant but less aggressive than a standard complementary scheme.
- Best For: Beginners. It’s hard to mess up this scheme, offering high contrast while maintaining visual balance.
Triadic & Tetradic
These use three or four colors evenly spaced around the wheel.
- Vibe: Playful, diverse, and rich.
- Best For: Complex illustrations, data visualization charts, or brands that want to appear creative and multifaceted.
Advanced Features for Professionals
One-Click Visualization
The standout feature of our tool is the ability to "try on" different palettes. By hovering over the Shades, Tints, or Tones sections and clicking "Apply," you can instantly see how a darker or lighter theme would look on a real interface. This rapid prototyping feature is invaluable for UI designers.
The "Tool Companion" Advantage
We built this site to be the ultimate tool companion for your workflow. While there are many random color palette generator tools out there, few offer the depth of analysis we do. We don't just give you colors; we give you the confidence that those colors will work for colorblind users, pass contrast tests, and integrate directly into your Tailwind or CSS codebase.
Design for Everyone: Built-in Blindness Simulator
Great design must be inclusive. With roughly 1 in 12 men affected by color vision deficiency, relying solely on standard color perception is a risk. ToolCompanion acts as your accessibility auditor.
Our integrated Blindness Simulator allows you to "stress test" your palette through the eyes of different users. Instantly view your scheme as it appears to those with Protanopia (red-blind), Deuteranopia (green-blind), Tritanopia (blue-blind), and even Achromatopsia (total color blindness). If your primary button color blends into your background in the simulation, you can catch and fix that usability error immediately, ensuring your UI is compliant and accessible to all.
About the Online Palette Generator
This free color palette generator is an essential utility for web designers, developers, and digital artists. It replaces the need for expensive design software or manual calculation. By allowing you to generate a color palette generator from hex input, it fits perfectly into existing brand guidelines. Whether you are looking for a random color palette generator for art inspiration or a strict color palettes generator for a banking app, our engine adapts to your needs. It combines creativity with the technical constraints of modern web development standards.