Crimson Pro + Exo

Algorithmic pairing based on complementary serif/sans-serif classification with 66% compatibility

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February 13, 2026 · 6 min read

Good typography is invisible. Bad typography is everywhere. The choice of typeface communicates before a single word is read — it sets tone, establishes hierarchy, and builds trust with your audience.

"Type is a beautiful group of letters, not a group of beautiful letters."

When pairing fonts, contrast is key. A serif heading with a sans-serif body creates natural visual hierarchy without any additional styling.

12.4k Visitors
3.2% Conversion
$48k Revenue
PageViewsConv.
/pricing2,8414.1%
/features1,9232.8%
/blog1,2041.2%

Head of Design

alex@company.com +1 (555) 234-5678 company.com
Crimson Pro + Exo

Why This Pairing Works

  • Classification contrast — serif + sans-serif creates strong visual hierarchy 95/100
  • x-Height harmony — Closely matched ratios (0.68 vs 0.73) ensure visual harmony at the same size 80/100
  • Width balance — Balanced character widths (520 vs 550 units) work well in mixed layouts 100/100

Best For

Web
66 /100 x-Height Stroke Width Class Mood
x-Height 80
Stroke 30
Width 100
Class 95
Mood 30
Provisional score

Try This Pairing

Crimson Pro
The quick brown fox jumps over the lazy dog
Exo
The quick brown fox jumps over the lazy dog

Glyph Legibility Check

Font 14px18px
Crimson Pro Il1 O0 rn/m Il1 O0 rn/m
Exo Il1 O0 rn/m Il1 O0 rn/m

Test: uppercase I, lowercase l, digit 1 · uppercase O, digit 0 · rn vs m

Quick Setup

Quick Setup

CSS code for Crimson Pro + Exo

/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Crimson%20Pro:wght@400;700&family=Exo:wght@400;700&display=swap');

/* Font Pairing Custom Properties */
:root {
  --font-heading: 'Crimson Pro', sans-serif;
  --font-body: 'Exo', serif;
}

/* Usage */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
}

body, p, li {
  font-family: var(--font-body);
}

Performance Impact

Combined Size
49 KB Tiny
Load Time
100 ms (4G) 1000ms on 3G
CLS Risk
LOW
Variable
Both variable Variable: 78 KB

Both fonts support variable axes — use font-display: optional for best CLS

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