Runtime theming for multi-tenant apps.
Your customers pick a brand color. Your app looks good. Every time. No per-customer design reviews, no manual tuning, no edge cases where that shade of yellow breaks your UI.
Try it in the playground: hextimator.com
You are shipping a B2B, B2B2C, or white-label app. Every tenant brings their own brand color. The options today are:
- Let them pick any hex. Now legal-pad yellow buttons become unreadable; cheeto tangerine toasts look identical to your warning state.
- Curate a palette. Now you are telling a paying customer their brand color is not allowed.
hextimator is option three. One color in, whole theme out. Light and dark, semantic roles and surfaces, WCAG contrast by default (AAA unless you opt down). Even for yellow. Palettes are built in OKLCH (gamut-mapped to sRGB); pure computation, SSR-friendly, with optional React and CLI.
Full API docs, options reference, React hook, Tailwind v4 setup, and examples live in the package README.
| Workspace | Path | Description |
|---|---|---|
hextimator |
packages/hextimator/ |
The publishable npm package |
website |
apps/website/ |
Landing page (hextimator.com) |
playground |
apps/playground/ |
React app for testing in the browser (playground.hextimator.com) |
See CONTRIBUTING.md for dev setup and checks.
MIT.