Free Tool

CSS Variables Theme Generator

ChromUI generates accessible UI themes and exports them as CSS variables so you can use them directly in real frontend projects after validating them in realistic previews.

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What it does

If your workflow is based on CSS custom properties, ChromUI gives you a practical way to generate and test the theme before you copy it into your project.

That makes it useful for design systems, component libraries, and apps that want tokenized theming without tying the output to a single framework.

Why ChromUI is different

•It previews the theme in complete UI layouts before you export the variables.
•It focuses on usable token relationships rather than raw palette output only.
•It supports accessibility-oriented fixes in the same workflow.
•It can also export the same theme as Tailwind or JSON if your stack expands later.

Preview relevant examples

CSS variables export

See the CSS custom property output and how it maps to a real theme system.

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What are design tokens?

Understand how CSS variables relate to broader token systems.

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Documentation template

Check how CSS-variable-based themes behave in surfaces, text, and code blocks.

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CSS variables first, without losing flexibility

ChromUI works well when CSS variables are the implementation target but the team still wants a reusable token workflow.

•Export a clean CSS variables theme for direct use in stylesheets and component systems.
•Keep the same theme available as JSON tokens when broader reuse is needed.
•Move into Tailwind later without rebuilding the theme from scratch.

Open ChromUI

Generate a CSS-variables-based theme in the app.

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Exports hub

See how CSS variables fit alongside Tailwind and JSON token outputs.

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Accessible theme generator

Read the broader positioning around accessible theme generation.

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Accessibility hub

Understand how contrast validation supports exported CSS variable themes.

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