How to dark mode typography implementation in production
- Step 1Minimal: just colour flip — Most sites. Light text on dark, no weight adjustment. Result: text looks heavier in dark mode but few users notice. Acceptable for content-light interfaces.
- Step 2Standard: weight reduction — Linear, modern SaaS. body { font-weight: 400 } @media (prefers-color-scheme: dark) { body { font-weight: 350 } }. Single adjustment for body. Visible improvement at low cost.
- Step 3Full: weight + spacing + line-height — Apple, premium brand sites. All three adjustments. Variable font axis tuning where available. Highest investment, polished result.
Frequently asked questions
What's the minimum useful effort?+
Weight reduction (light 400 → dark 350) for body text. Single line of CSS in a media query. Visible improvement with negligible engineering cost. Start here.
When is full investment worthwhile?+
Brand-sensitive sites where typography quality matters. Reading-heavy interfaces (documentation, reading apps). High-end consumer apps with discerning audiences.
Should I adjust for high-contrast mode too?+
Optional. prefers-contrast: more enables high-contrast mode (used by accessibility-conscious users). Increase weight + reduce letter-spacing slightly for that mode. Some users actively prefer high-contrast over dark.
Privacy first
Every JAD Font tool runs entirely in your browser using opentype.js and the wawoff2 WASM Brotli encoder. Your fonts never leave your device — verified by zero outbound network requests during processing.