Slabo 27px

Replaces: Clarendon (75%) | OFL-1.1 | Updated: Feb 2026

About Slabo 27px

Classification
serif
Weights
400
Features
Standard
SIL Open Font License 1.1

Free to use, modify, and distribute. Can be used commercially without attribution.

What's allowed?
  • Client work
  • SaaS / Web apps
  • YouTube / Video
  • Sell products
  • Print materials

Note: Derivative fonts must use the same license.

Full license guide →
Get Slabo 27px Free ↗

Slabo 27px is a slab serif typeface designed by John Hudson specifically for use at a single size: 27 pixels. Part of the Slabo project, which includes variants optimized for different sizes, Slabo 27px features bracketed serifs and sturdy construction optimized for digital display at its target size.

History and Design

John Hudson of Tiro Typeworks designed the Slabo series as an experiment in size-specific type design. Rather than creating a single typeface that compromises across all sizes, Hudson designed separate fonts optimized for specific pixel dimensions—13px and 27px being the two released variants.

Slabo 27px features the characteristic bracketed slab serifs of the Clarendon style, with proportions and details tuned specifically for 27-pixel rendering. This size-specific approach ensures optimal clarity and readability at the intended display size.

Why Slabo 27px Excels

Size-specific optimization means Slabo 27px looks exceptionally crisp at its intended size. The bracketed serifs appear smooth and well-defined rather than fuzzy or indistinct. This precision makes it ideal for web headings, navigation, and any typography intended for 27-pixel display.

Technical Features

  • Size optimized: Designed specifically for 27px rendering
  • Bracketed serifs: Clarendon-style curved serif connections
  • Web focused: Optimized for screen display
  • Single weight: Focused optimization over variety

Best Use Cases

Slabo 27px excels in:

  • Web headings: Crisp display at 27px
  • Navigation menus: Clear, readable labels
  • Section titles: Strong presence with readable detail
  • Call-to-action buttons: Authoritative text treatment

Usage Tips

Use Slabo 27px at or near its designed size (27px) for optimal results. Slight variations (24-30px) can work, but significant departures may not render as intended. For other sizes, consider Slabo 13px or alternative slab serifs. Pair with clean sans-serifs like Open Sans or Source Sans Pro for body text to create professional, readable layouts.

Is Slabo 27px on Google Fonts?

Yes, Slabo 27px is available for free on Google Fonts. Get Slabo 27px on Google Fonts ↗

Alternative For (1)

Slabo 27px is a free alternative to the following premium fonts:

[Linotype] · serif

Web-optimized slab with bracketed serifs for excellent screen readability

View all alternatives

Compare Slabo 27px

See how Slabo 27px compares to other fonts side by side.

Font Pairings

Fonts that pair well with Slabo 27px based on contrast and complementary design characteristics.

Open Sans + Slabo 27px
82/100
sans-serif + serif
Best for: Professional, Blog
Enterprise Finance Legal
DejaVu Sans + Slabo 27px
78/100
sans-serif + serif
Healthcare Enterprise Finance
Libre Franklin + Slabo 27px
78/100
sans-serif + serif
Enterprise Finance Legal
Roboto + Slabo 27px
78/100
sans-serif + serif
Healthcare Enterprise Finance
Slabo 27px + Source Sans Pro
78/100
serif + sans-serif
Enterprise Finance Legal

Performance

Key metrics for evaluating Slabo 27px in production.

Score
54 /100 Average
File Size
24.4 KB Tiny
Weights
1 static
Languages
2 groups CDN delivery

Font Metrics

x-Height Ratio
0.481
Cap Height Ratio
0.667
Ascender
750
Descender
-240

Fallback CSS Overrides

Apply these overrides to Georgia to minimize layout shift when loading Slabo 27px.

@font-face {
  font-family: 'Slabo 27px Fallback';
  src: local('Georgia');
  ascent-override: 92.59%;
  descent-override: 29.63%;
  line-gap-override: 0%;
  size-adjust: 100.01%;
}
woff2 Measured via Google Fonts API Metrics extracted from WOFF2

How to Use Slabo 27px

Copy these code snippets to quickly add Slabo 27px to your project.

Quick Start

CSS code for Slabo 27px

@import url('https://fonts.googleapis.com/css2?family=Slabo+27px:wght@400&display=swap');