Accessible UI themes with WCAG-aware token generation

Generate accessible color and interface tokens, validate them in realistic UI previews, and fix contrast issues with AA and AAA-aware controls before you ship.

Open appExplore accessibility guides

What ChromUI helps with

  • Build accessible token systems (surfaces, text roles, borders), not one-off hex tweaks.
  • Validate theme contrast in realistic interfaces: navigation, cards, tables, headings, muted text.
  • Apply one-click style fixes with AA and AAA-oriented workflows when you need to iterate fast.
  • Export accessible tokens into CSS variables, Tailwind, JSON, or shadcn/ui-oriented output.

Why real previews matter

A foreground and background color can pass a pairwise ratio check and still fail in the product. That happens when hierarchy changes effective contrast: small label text, hairline borders, subtle dividers, disabled or muted states, nested surfaces, and busy layouts all shift what users actually perceive.

Readability is a system problem: typography scale, line length, surface layering, component states, and spacing matter as much as the raw hex values. Isolated chips do not show those interactions.

ChromUI previews themes in layouts that resemble real work (dashboards, content sites, documentation) so you evaluate accessibility where it will ship, then adjust tokens and re-check without leaving the workflow.

AA vs AAA in practice

AA is usually the baseline for everyday UI: interactive controls, body copy, and important labels need to stay legible across themes and modes. Most product teams anchor here first because it balances usability with a practical color range.

AAA is stricter. It is most useful when the risk or reading load is high: long-form reading, critical warnings, or accessibility-first commitments. It often narrows your palette and demands more discipline on subtle neutrals.

Real teams mix targets: AA for dense UI chrome, AAA for hero reading experiences, or phased upgrades as themes mature. ChromUI supports both so you can choose the level that matches the surface, then see the impact in previews before locking tokens.

Read the AA vs AAA guide

Accessibility workflow in ChromUI

  1. Generate theme tokens

    Start from a vibe or direction and produce a coherent token set (surfaces, text roles, accents, borders).

  2. Check and fix contrast issues

    Use WCAG-aware fixes with AA or AAA-oriented workflows. Iterate while the theme still lives in the generator.

  3. Preview and export

    Validate in realistic layouts, then export to your stack: CSS variables, Tailwind, JSON tokens, or shadcn/ui-oriented output.

Related pages

WCAG contrast guarantee
What ChromUI aims to guarantee, what it does not, and where human judgment still matters.
Open →
How to create an accessible color palette
Practical steps from palette to tokens that survive real UI hierarchy.
Open →
WCAG AA vs AAA for UI design
Choose targets for product work without turning contrast into a checkbox exercise.
Open →
Accessible theme generator
Product-connected landing for WCAG-aware theme generation in ChromUI.
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Accessible color palette generator
How palette generation ties into full theme and export workflows.
Open →
Template previews
Validate themes in dashboard, editorial, and docs-style layouts before export.
Open →
Documentation site preview
A docs-heavy preview for sidebar, code blocks, and layered surfaces.
Open →

FAQ

Is ChromUI a WCAG contrast checker?

No. ChromUI is an accessible theme generator. It builds token systems, previews them in realistic UI layouts, and helps you fix contrast with WCAG-aware AA and AAA workflows before you export.

Can ChromUI help fix AA and AAA issues?

Yes. You can work with AA targets for typical UI surfaces and text, then push further toward AAA where it makes sense. The app surfaces tradeoffs in context so fixes match real hierarchy, not a single isolated pair.

Does ChromUI test themes in real UI layouts?

Yes. Previews include dashboards, content layouts, and documentation-style surfaces so you see how borders, surfaces, muted text, and component states behave together.

Can I export accessible tokens to production?

Yes. After you validate in previews, you can export CSS variables, Tailwind-oriented theme output, JSON design tokens, and shadcn/ui-oriented output for implementation.

What is the difference between AA and AAA in practice?

AA is usually the baseline for product UI: body text, controls, and key states need enough contrast to be usable. AAA is stricter and is most useful for critical reading experiences or high-risk interactions, often with tradeoffs on color range and visual style.

Why is preview validation better than only checking hex pairs?

Because contrast in a product depends on how colors stack: surface vs border vs muted labels vs emphasis. A pair can pass on paper and still fail when typography scale, spacing, or state styles reduce effective legibility.

Open app and test your theme

Generate tokens, fix contrast in context, preview in realistic layouts, then export for your frontend workflow.

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