AI Typography Scale Generator

A typography scale is a set of harmoniously proportioned font sizes derived from a mathematical ratio. Just as musical scales create pleasing note relationships, typographic scales create visual harmony between heading levels, body text, and small text. Using a consistent scale ensures your typography feels cohesive and professionally designed rather than arbitrarily sized.

For most web projects, the Perfect Fourth (1.333) or Major Third (1.250) work well — they provide enough contrast between sizes without becoming extreme. The Golden Ratio (1.618) creates dramatic differences suited to editorial designs. Smaller ratios like Minor Second (1.067) work for compact interfaces with subtle size differences. Choose based on how much contrast you need between heading levels.

Use rem units for production CSS. Rem units are relative to the root font size, respecting user browser settings for accessibility. Pixels are useful as a reference during design, but rem ensures your typography scales proportionally when users adjust their default font size. Our generator provides both so you can design in pixels and implement in rem.

Use fluid typography with CSS clamp() to smoothly scale between mobile and desktop sizes. A common approach is reducing your scale ratio by one step on mobile — for example, using Major Third (1.250) on mobile if you use Perfect Fourth (1.333) on desktop. This prevents headings from becoming too large on small screens while maintaining visual hierarchy.

Line height should decrease as font size increases. Body text (14-18px) typically needs 1.5-1.7 line height for readability. Headings (24px+) work well at 1.1-1.3 because the larger size provides natural spacing. Small text (12px and below) may need 1.6-1.8 to maintain legibility. Our generator calculates optimal line heights for each step in your scale.