Core principles for building the scale
- Define a stable progression: A simple modular scale avoids visual jumps and keeps harmony between headings and body text.
- Assign clear type roles: Each size should map to a concrete role to avoid ad hoc decisions on every screen.
- Scale by global breakpoints: Adjust tokens by device instead of tweaking isolated components.
From scattered styles to a real system
Many projects start with good intentions and end with disconnected typography across screens.
The solution is not adding more styles, but reducing variability and creating a maintainable map.
When roles and sizes are documented early, design and development move much faster.
Implementation in four steps
A practical flow to define, validate and deploy scalable typography in digital products.
| Phase | Focus | Outcome |
|---|---|---|
| 1 | Audit the current interface | Identify duplicates, unused styles and hierarchy conflicts in key pages. |
| 2 | Define tokens | Set sizes, weights and line-heights tied to content roles. |
| 3 | Test with real content | Validate the scale in long text, cards and forms to ensure readability. |
| 4 | Document and apply | Publish usage rules and connect tokens to components for uniform adoption. |
Results of strong type architecture
The system improves both visual perception and team delivery speed.
- Smoother reading: Users understand content faster thanks to clearer visual hierarchy.
- More coherent UI: All screens follow the same visual language without random exceptions.
- Simpler maintenance: Typography updates become predictable when centralized in tokens.
Frequently asked questions about UI typography
How many type levels are recommended?
Most teams work well with 6 to 9 clearly defined levels. More usually adds noise and complexity.
Should mobile use a different scale?
Yes, but through the same token system adapted by breakpoint to preserve consistency.
What is the most common mistake when building the scale?
Designing from isolated screens. The scale should be validated in real product context.