Stroke contrast is the difference between a typeface’s thinnest and thickest strokes. Low contrast keeps delicate strokes from disappearing on small screens, helping text stay readable. section 20.3
When choosing a typeface, use this quick check:
- Look for minimal variation between thin and thick strokes. section 20.3
- Compare stroke contrast alongside counters, apertures, and x-height. section 20.3
- Choose paired typefaces with similar legibility characteristics, even when mixing serif and sans-serif designs. section 20.3
Try it in a portfolio
Compare Playfair Display and Open Sans as heading and body choices. Inspect their thinnest and thickest strokes, then check whether both remain clear at small sizes. section 20.3

