RANK #06 85% MATCH

Inter × Source Serif 4

sans-serif  +  Body

Source Serif is Adobe's clean transitional serif, and under a neutral Inter heading it reads as calm, modern body text — the same designer-system logic as pairing it with Source Sans, but with Inter's screen-tuned headli...

Headings + Body Google Fonts Free
Open in Studio Copy CSS
Match scores

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

COMPOSITE MATCH
85 /100
Strong match
Class contrast 88
Role clarity 84
X-height harmony 82
Mood affinity 84
WHY IT WORKS
Structure meets readability

Source Serif is Adobe's clean transitional serif, and under a neutral Inter heading it reads as calm, modern body text — the same designer-system logic as pairing it with Source Sans, but with Inter's screen-tuned headline leading. A composed, professional inversion.

Where it shines

Documentation, product and corporate sites wanting a modern sans headline over a clean serif body.

Where to be careful

Both are restrained — lean on Inter's weight for the headline so the hierarchy stays obvious.

THE TYPEFACES
Meet the pair
Ag HEADING
Inter
sans-serif · Rasmus Andersson · 2016
ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz 0123456789 & ?!
WEIGHTS
Thin ExtraLight Light Regular Medium SemiBold
BEST FOR Headlines, labels, UI
Ag BODY
Source Serif 4
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 — Inter 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=Inter:wght@500;700&family=Source+Serif+4:wght@400;500&display=swap" rel="stylesheet">
styles.css
h1, h2, h3 {
  font-family: "Inter", 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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