UI Skillbook
2

Design systems set in Geist

Brands and apps whose DESIGN.md names Geist as a typeface, including Vercel, Mastercard and Upstage. Each file also lists the sizes, weights and colors that go with it, so your coding agent can match the whole style.

3 files

Files

Vercel

UI Skillbook · Geist

Strict black-and-white developer aesthetic built on Geist, hairline borders and a grid you can almost see.

Mastercard

Brands · Circular

Mastercard's experience reads like a warm, editorial magazine built from soft stone and signal orange. The canvas is a muted putty-cream (#F3F0EE) — not white, not gray, but a color that feels like the paper of a…

Upstage

Brands · Geist

Enterprise AI for document-heavy work. (Current public-surface reference, observed 2026-07-13)

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