RANK #07 84% MATCH

League Spartan × Source Serif 4

sans-serif  +  Body

League Spartan's bold geometric headlines over Source Serif's modern transitional body pair strong display with a clean, composed serif — the impactful sans leads while Source Serif gives the reading authority and warmth...

Headings + Body Google Fonts Free
Match scores

How League Spartan and Source Serif 4 score across four checks — class contrast, role clarity, x-height harmony and mood affinity. Higher is better.

COMPOSITE MATCH
84 /100
Reliable choice
Class contrast 88
Role clarity 86
X-height harmony 80
Mood affinity 80
WHY IT WORKS
Structure meets readability

League Spartan's bold geometric headlines over Source Serif's modern transitional body pair strong display with a clean, composed serif — the impactful sans leads while Source Serif gives the reading authority and warmth, the class contrast holding hierarchy.

Where it shines

Documentation, reports and editorial sites wanting bold headlines over a clean serif body.

Where to be careful

Keep headlines short and confident so the heavy caps clearly lead the composed serif body.

THE TYPEFACES
Meet the pair
Ag HEADING
sans-serif · Micah Rich, Tyler Finck (The League of Moveable Type) · 2014
ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz 0123456789 & ?!
WEIGHTS
Thin ExtraLight Light Regular Medium SemiBold
BEST FOR Headlines, labels, UI
Ag BODY
Frank Grießhammer
ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz 0123456789 & ?!
BEST FOR Body text, quotes, long reads
GET THE PAIR
Drop it into your project

Add the fonts, then two rules — League Spartan for headings, Source Serif 4 for everything you read.

index.html
<link rel="preconnect" href="https://fonts.googleapis.com">
<link href="https://fonts.googleapis.com/css2?family=League+Spartan:wght@500;700&family=Source+Serif+4:wght@400;500&display=swap" rel="stylesheet">
styles.css
h1, h2, h3 {
  font-family: "League Spartan", sans-serif;
  font-weight: 700;
  letter-spacing: -0.01em;
}

body, p {
  font-family: "Source Serif 4", serif;
  font-weight: 400;
  line-height: 1.7;
}
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