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supabase/packages/ui/README.md
T
Saxon FletcherandClaude Opus 4.8 fb02182e86 Color system (#47288)
## I have read the
[CONTRIBUTING.md](https://github.com/supabase/supabase/blob/master/CONTRIBUTING.md)
file.

YES/NO

## What kind of change does this PR introduce?

Bug fix, feature, docs update, ...

## What is the current behavior?

Please link any relevant issues here.

## What is the new behavior?

Feel free to include screenshots if it includes visual changes.

## Additional context

Add any other context or screenshots.


<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **New Features**
* Refreshed theming across the UI to use modern color expressions and
shared theme variables (including OKLCH-based gradients), improving
consistency for charts, code blocks, overlays, icons, and decorative
backgrounds.
* **Bug Fixes**
* Improved light/dark color and gradient consistency across axis/grid
styling, reference lines, buttons/badges, sidebar accents, loaders, and
other visual components.
* **Documentation**
* Updated styling/theming guidance to align with the revised semantic
token system and the updated theme variable usage patterns.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

---------

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-03 15:00:43 +10:00

1.4 KiB

packages/ui

Supabase's shared React component library. Built on Radix UI primitives and shadcn/ui, styled with Tailwind CSS, and used across all Supabase apps.

Usage

Import from the 'ui' package alias:

import { Badge, Button, Input } from 'ui'

Some of the components have the _Shadcn_ suffix. These components should be preferred, they're in a process of replacing the other ones.

Utilities

// deep object merge (used for themes)
import { clipboard, cn, mergeDeep } from 'ui' // clsx + tailwind-merge

// copy-to-clipboard helper

Styling conventions

  • Tailwind only — no inline styles or CSS modules.
  • Use shadcn semantic pairs (bg-card text-card-foreground, bg-muted text-muted-foreground, bg-tertiary text-tertiary-foreground) rather than hardcoded colors. Legacy utilities such as text-foreground-light and border-default are compatibility aliases only.
  • Themes set the core --hue (or the split --surface-hue / --primary-hue), --chroma, --surface, --foreground-lightness, and --contrast inputs, plus their --muted-foreground-level and --tertiary-foreground-level hierarchy. Semantic colors are derived from them in OKLCH; --contrast: 1 is the baseline and the supported adjustment range is 0.75 to 1.25.
  • The workspace root owns the actual tailwind.config.js. The file in this package is a stub for IntelliSense only.