Used by Microsoft
Fluent UI
by Microsoft · fluent2.microsoft.design
Colors
BasePrimaryTextBorderSoft
Typeface
AaSegoe UIRadius
248
Screenshot 1 of 2What it is
Microsoft's Fluent 2 for React, the system behind Teams and Office on the web: calm blue, small corners and dense, tidy layouts.
Design SystemsA design system is more than a component set: it comes with tokens for color, type and spacing, theming, and rules for how parts fit together.
Good for
- Products that need one consistent look
- Theming and dark mode
- Teams sharing one set of components
Alternatives to Fluent UI
Other Design Systems kits.
Primer ReactFree
The components behind GitHub's own product pages, from issues to settings: clean, information-dense and built for developers.

Base WebFree
Uber's React design system: black and white, high contrast and plain shapes, the look of Uber's own web tools.

CloudscapeFree
The design system behind the AWS console: data tables, forms and dashboards built for long working sessions.