TYPEMATCHSEO
Launch

TYPEMATCH.

V2.1

Browse Directory
700
400
PAIRING ID: CAS-OVE // ETHOS: SERIF + MONOSPACE

Balancing Castoro with Overpass Mono

Build a contrast-first system where Castoro leads and Overpass Mono keeps long-form content legible.

Display Face

Castoro

Weight: 700

Body Face

Overpass Mono

Weight: 400

This pairing is engineered for teams that need a clear hierarchy without sacrificing brand voice. Castoro brings text, academic, readable energy to hero units, pricing sections, and campaign headlines. Overpass Mono absorbs the heavy lifting for paragraphs, product storytelling, and UI labels with its redhat, coding, clear texture and dependable rhythm. Together they create a typography stack that scales from high-impact landing pages to dense documentation without retooling your CSS tokens.

Typographic Hierarchy & Scale

H1The Quick Fox
H2The Quick Fox
H3The Quick Fox
PThe quick brown fox jumps over...
Dark Context
Aa

High contrast negative space.

Accent
Gg

Legibility on high-chroma.

Pairing Strategy

Balancing Castoro with Overpass Mono

Build a contrast-first system where Castoro leads and Overpass Mono keeps long-form content legible.

This pairing is engineered for teams that need a clear hierarchy without sacrificing brand voice. Castoro brings text, academic, readable energy to hero units, pricing sections, and campaign headlines. Overpass Mono absorbs the heavy lifting for paragraphs, product storytelling, and UI labels with its redhat, coding, clear texture and dependable rhythm. Together they create a typography stack that scales from high-impact landing pages to dense documentation without retooling your CSS tokens.

Castoro thrives as a headline face thanks to its text, academic, readable qualities. Use weights 400–600 for crisp editorial lockups.
Overpass Mono excels in paragraphs and UI thanks to its redhat, coding, clear traits. Keep it between weights 400–600 for optimal readability.
Hierarchy guidance: run a 1:1.4 modular scale and reserve Castoro for H1–H3 while Overpass Mono powers captions, body copy, and data tables.

Best-Fit Use Cases

  • High-growth SaaS landing pages that require text hero statements with trustworthy product copy.
  • Editorial magazines and thought-leadership hubs where Castoro can dramatize pull quotes while Overpass Mono keeps 1,500-word essays skimmable.
  • Conversion funnels or onboarding flows that need Overpass Mono's redhat voice to balance Castoro's attention-grabbing display.

Accessibility Notes

Maintain a minimum 4.5:1 contrast ratio for Overpass Mono body copy and loosen letter-spacing to 0.01em for uppercase Castoro moments. Pairing different categories demands disciplined color pairing—test both light and dark themes to ensure Overpass Mono does not bloom at small sizes.

CSS Implementation Cheatsheet

:root {
  --tm-header-family: 'Castoro', serif;
  --tm-body-family: 'Overpass Mono', monospace;
  --tm-header-weight: 400;
  --tm-body-weight: 400;
  --tm-header-tracking: -0.01em;
  --tm-body-tracking: 0em;
}
Heading scale: clamp(2.75rem, 4.5vw, 5.25rem) for H1, clamp(1.5rem, 2.8vw, 3rem) for H2, and keep paragraph size at 1rem–1.125rem with 1.6 line-height.
Component guidance: Buttons inherit Castoro at 400 for momentum, while forms, tables, and footnotes stay on Overpass Mono with 400 weight for predictable kerning.

FAQs

Why does Castoro make sense as the lead font?

Castoro owns the emotional register of this system. Its text, academic, readable profile helps anchor campaign creative, meaning marketing and product teams can reuse the same voice without reinventing the scale.

Where should Overpass Mono show up?

Overpass Mono is the workhorse. Keep it in paragraphs, long-form editorial, knowledge bases, or anywhere legibility is non-negotiable. Its redhat, coding, clear qualities reduce fatigue on dense layouts.

Does this pairing support complex localization?

Yes—both families are available on Google Fonts with generous glyph coverage. Test cyrillic/latin accents early, but most Latin-based locales and UI patterns are fully supported.