Design System Glossary

Multi-brand design system

A multi-brand design system serves several brands or products from one shared component library, using tokens and theming to swap colour, type and feel between them. It's how holding companies like Booking, Atlassian and BBC ship many products without rebuilding components for each.

The architecture sounds clean but the politics are usually harder than the code. Each brand wants permission to deviate; each deviation chips away at the shared logic. Strong governance and a clear contribution model decide whether the system survives — see our take on governance best practices. The design pattern itself is a tier-three token system (reference → semantic → brand-specific overrides) plus disciplined component APIs.