Pick a starting color
Start with a color you love. ColorStack builds a practical set of interface colors around it, so you can move from inspiration to a usable palette.
About ColorStack.dev
Great interfaces start with the right colors.
ColorStack is an online color picker and UI theme builder that helps you turn one starting color into a cohesive website palette, test readability, preview interface components, and export practical CSS.
What ColorStack does
From one color to a usable UI.
ColorStack is built for developers, designers, and anyone who wants a more confident starting point for website colors.
Preview a complete interface
See how your choices work on buttons, cards, surfaces, borders, and text before bringing them into your project.
Check readability
Review text and background combinations with contrast checks informed by WCAG AA and AAA criteria.
Take the CSS with you
Copy generated CSS color variables and use them as a starting point for your own stylesheets and design systems.
Designed for real projects
Less guessing. More building.
Choosing a color is easy. Making it work across a complete interface is harder. Buttons, backgrounds, borders, and text all need to feel connected without sacrificing readability.
ColorStack brings those decisions into one workspace. Explore combinations, check contrast, and leave with CSS you can adapt to your own project.
It's a practical design companion—not a replacement for your judgment, and not a promise that automated checks alone make an entire website accessible.
A little color goes a long way.
Five colors. Countless directions.
Example palette
:root {
--color-primary: #f05b72;
--color-surface: #12141b;
--color-text: #f4f5f8;
}
--color-primary: #f05b72;
--color-surface: #12141b;
--color-text: #f4f5f8;
}
Build with confidence
Find your color. Build your look.
Whether you're designing a landing page or refining a complete website, ColorStack gives you a clearer place to start.
Try ColorStack →