modular-scale-typography
Modular Scale Typography
Typography feels cohesive when all font sizes are related to each other through a single mathematical ratio. Without a scale, sizes get picked arbitrarily and the result feels visually noisy — headings that don't contrast enough, body text too close in size to captions, labels that blend into content.
What Is a Modular Scale
A modular scale starts from a base size and multiplies or divides by a ratio to generate every size in the system.
size(n) = base × ratio^n
Every size is thus a deliberate step away from the base — not a guess.
Choosing a Ratio
| Ratio | Name | Feel | Good for |
|---|---|---|---|
| 1.067 | Minor Second | Very tight | Dense data UIs, dashboards |
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