Design systems explained: tokens, components and why your product needs one
A design system is the shared set of design tokens (colour, type, spacing), components and usage rules that a product is built from. It keeps screens consistent as teams grow and lets designers and engineers ship new features faster because the building blocks already exist.
Key takeaways
- Tokens first, components second, documentation third.
- Build the system from your real product, not from a template.
- Every component needs its states: default, hover, focus, disabled, loading, error.
- One owner with authority keeps it alive; committees let it rot.
Every product has a design system — the question is whether it is written down. Without one, the same button exists in nine variations and every new screen starts from a blank canvas.
The three layers
- Design tokens
- Named values — color.accent, space.4, radius.lg — stored once and used in both Figma and code. Change a token and every screen updates.
- Components
- Buttons, inputs, tables, modals and their variants, built from tokens with every state designed.
- Patterns and guidance
- How components combine into forms, data grids, empty states and approvals — and when not to use them.
- 01Tokens — colour, type, spacing, radius, elevation.
- 02Components — built only from tokens, with every state.
- 03Patterns — components combined into forms, tables and flows.
- 04Screens — assembled from patterns, so new features start half-built.
When to invest
Build one now if
- More than one designer or squad works on the product
- You are about to redesign or replatform
- Engineers keep rebuilding the same UI
Wait if
- You are still searching for product-market fit
- The product has fewer than ten screens
- Nobody can own it after launch
A rollout that gets adopted
- Audit existing screens and collect every variant of every component.
- Agree tokens for colour, type, spacing, radius and elevation.
- Build the ten most-used components first, in Figma and in code together.
- Migrate one real flow to prove the system before mandating it.
- Publish a changelog so teams trust updates instead of forking.
We build design systems as part of design system development. Every concept in our UI/UX portfolio is built on one, so you can see the consistency it buys across very different products.
Sources
Kiara writes Advorize's guides on design, development and digital systems, turning the team's project work into practical, plain-language answers.