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IBM Plex Mono + IBM Plex Sans font pairing

IBM's type family was designed as a system. Mono and Sans share DNA, creating seamless transitions between code and prose. Ideal for technical documentation, API references, and enterprise developer platforms.

Use this pair

IBM PLEX MONO + IBM PLEX SANS

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The Quick Brown Fox Jumps Over The Lazy Dog
Typography is the art and technique of arranging type to make written language legible, readable, and appealing when displayed. The arrangement of type involves selecting typefaces, point sizes, line lengths, line-spacing, and letter-spacing, as well as modifying the space between pairs of letters.

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Opinion

The quiet power of good type.

Before a single word is read, the shapes on the page have already decided how much you trust them.

AT
Alan Tippins
Aug 2026 · 8 min read
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Type does its work quietly. Before anyone reads a word, the shapes on the page have already set a tone, calm or loud, plain or dressed up. A good pairing gives a headline its voice and lets the body text settle into a calm, effortless reading rhythm.

The reader never notices the type, only the ease of it.

Choose the wrong pair and the seams show. The eye snags, the tone wobbles, and trust leaks away one sentence at a time. Most failures are not one loud mistake, but a hundred quiet ones hiding in plain sight.

The craft is to be felt, not seen. When a headline and its text agree, the page feels effortless, and the reader stays. That agreement is the whole game — an act of respect for the reader’s attention, paid in advance and never mentioned again.

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USE THIS PAIR

Paste into your stylesheet, before other style rules.

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;600;700&family=IBM+Plex+Sans:wght@400;500;600&display=swap');

:root {
  --font-heading: 'IBM Plex Mono', monospace;
  --font-body: 'IBM Plex Sans', sans-serif;
}

h1, h2, h3 {
  font-family: var(--font-heading);
}

body {
  font-family: var(--font-body);
}

RECOMMENDED WEIGHTS · IBM PLEX MONO

Regular 400The quick brown fox jumps over the lazy dog
SemiBold 600The quick brown fox jumps over the lazy dog
Bold 700The quick brown fox jumps over the lazy dog

IBM PLEX SANS

Regular 400The quick brown fox jumps over the lazy dog
Medium 500The quick brown fox jumps over the lazy dog
SemiBold 600The quick brown fox jumps over the lazy dog

CHARACTER SET · IBM PLEX MONO

Aa
Bb
Cc
Dd
Ee
Ff
Gg
Hh
Ii
Jj
Kk
Ll
Mm
Nn
Oo
Pp
Qq
Rr
Ss
Tt
Uu
Vv
Ww
Xx
Yy
Zz
0
1
2
3
4
5
6
7
8
9
!
@
#
$
%
&
*
(
)
?
.
,
;
:
–
+
=

IBM PLEX SANS

Aa
Bb
Cc
Dd
Ee
Ff
Gg
Hh
Ii
Jj
Kk
Ll
Mm
Nn
Oo
Pp
Qq
Rr
Ss
Tt
Uu
Vv
Ww
Xx
Yy
Zz
0
1
2
3
4
5
6
7
8
9
!
@
#
$
%
&
*
(
)
?
.
,
;
:
–
+
=

ABOUT

IBM Plex Mono

IBM's monospaced typeface, part of the Plex superfamily. Designed to work alongside Plex Sans and Serif, it carries the same proportional rhythm into a fixed-width context for code and data.

Mike Abbink, 2017

monospace · 14 styles

Italic

Recommended: 400, 600, 700

Available: 100–700

→ Google Fonts ↗

IBM Plex Sans

IBM's corporate sans-serif, designed to express the brand's ethos of progressive, human-centered design. A neutral grotesk with just enough personality to avoid feeling sterile.

Mike Abbink, 2017

sans-serif · 14 styles

Variable · Italic

Recommended: 400, 500, 600

Available: 100–700

→ Google Fonts ↗
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