Brandbook · 05
Typography
Two families. Inter Tight is the voice of the name; IBM Plex is the voice of everything else, from billboards to product screens.
Typefaces
Aa
Inter Tight
Medium 500
The wordmark only. Never for headlines or text.
Aa
IBM Plex Sans
Light 300 · Regular 400 · SemiBold 600
Headlines, body text, interfaces, documents.
Aa
IBM Plex Mono
Regular 400
Labels, eyebrows, numbers, code.
Hierarchy
Big and light, small and bold. Headlines are Plex Sans Light; they get their weight from size, not from boldness.
Eyebrow · Plex Mono 12 caps
Infrastructure for what comes next.
Subhead in Plex Sans Regular 20. One idea, one sentence.
Body in Plex Sans Regular 16 on 26. Keep lines between 50 and 75 characters, align left, and never justify. Emphasis uses SemiBold, never italics or underline.
Fallbacks
Where the brand fonts can’t be installed (email, Office documents) use Arial for Plex Sans and Consolas for Plex Mono. The logo is always an image, so it never falls back.