Oi
Type with Purpose
Good typography guides attention, improves understanding, and makes communication effortless.
The Anatomy of a Typeface
By FontSide · June 2026
Every typeface is a system of decisions — about stroke contrast, x-height, spacing, and rhythm. The best ones feel invisible: you stop seeing the letters and start hearing the voice behind them. That transparency is the hardest thing to design.
A high x-height opens up the counters and makes small text breathe. Tight tracking pulls a headline together; loose tracking gives a caption room to exhale. None of these choices are accidents — they are arguments about how reading should feel.
Uppercase
Lowercase
Numerals
Symbols
Package Manager
The recommended way to use fonts in modern web projects.
1. Install Package
pnpm add @fontsource/oi 2. Import in App
// Please select at least one weight and style 3. CSS Usage
body {
font-family: "Oi", system-ui;
} Google Fonts CDN
Use Google's CDN to embed the fonts directly via HTML.
HTML <head>
<!-- Please select at least one weight and style --> Fontsource CDN
Skip the build step by adding this directly to your global CSS file.
Global CSS
/* Please select at least one weight and style */ Background & Story
Oi is an ultra-fat display typeface that has its roots in grotesque slab serifs, most specifically the style that sprung with the release of Caslon’s Ionic in 1844 and Clarendon by Fann Street Foundry in 1845. The typeface is a free spirited twisted interpetation of the clarendonesques. With an unapologetic tendency for public shouting, it is a whimsical loudmouth attention seeker!
"Oi" is an interjection used in various languages. Its meaning varies, depending on the tone and abruptness of its use, from a simple “hi” or a call of attention to as far as a challenge to a fight.
Check out the mini-website. To contribute, see github.com/kosbarts/Oi.
Tags & Moods
Subsets
Install
pnpm add @fontsource/oi Designed by
Kostas Bartsokas
Links
License
OFL-1.1