Typography is more than just choosing a nice font; it is about establishing a system that ensures consistency, readability, and hierarchy across your entire digital product.
A good font system usually relies on a primary and a secondary typeface. The primary typeface is often used for headings and display purposes, while the secondary, high-legibility font is chosen for body copy.
Understanding Contrast
When pairing fonts, look for contrast. You do not want two fonts that look too similar. A common and effective combination is pairing a Serif for headings with a Sans-Serif for body text, or vice-versa.
For example, pairing Playfair Display (Serif) with Inter (Sans-Serif) creates a sleek, modern look with a touch of editorial elegance.
Building the Scale
Once you have your typefaces, you need to establish a typographic scale. A scale dictates the sizing of your text elements (H1, H2, H3, p, small, etc.) using a mathematical ratio. A common ratio is 1.2 or 1.25.
By sticking to a consistent scale, you ensure vertical rhythm and visual harmony throughout your application. Every size relates to the others in a predictable, pleasing way.
Line Height and Spacing
Type is not just about size. Line height (leading) and letter spacing (tracking) dramatically affect readability. Body text generally reads best with a line height between 1.5 and 1.8, while large display headings can use tighter leading closer to 1.1.
Conclusion
A thoughtful font system is invisible when done well. Readers simply feel that the content is easy and pleasant to consume, never noticing the careful decisions behind every measurement.