friendly

Roboto Slab and Onest font pairing

Serif headings with a sans serif body.

Background
Issue 07 · Field notes
Make something people love

Good pairings feel inevitable. Great ones set the tone before a single word is read.

Typography sets the tone before a single word is read. A strong pairing creates clear hierarchy while feeling like one consistent voice across every page. This paragraph is set in Onest, while the headline uses Roboto Slab. Numbers like 0123456789, punctuation “quotes” — and ampersands & — reveal a lot about how two typefaces get along.

Contrast, then harmony

Look for contrast in structure and harmony in proportion: similar x-heights, compatible widths and a shared sense of rhythm. Bold text and italic text should feel natural, too.

Why this pairing works

A classic contrast: Roboto Slab's serifs give headlines an editorial, trustworthy voice while Onest's clean shapes keep body text easy to scan on screens. Onest ships in 9 weights, so you can build captions, buttons and emphasis without adding another family.

HRoboto Slab

Roboto Slab is a free slab serif typeface designed by Christian Robertson, added to Google Fonts in 2013. It comes in 9 weights, and is a variable font with a weight axis.

More pairings for Roboto Slab →

BOnest

Onest is a free sans serif typeface designed by Dmitri Voloshin and Andrey Kudryavtsev, added to Google Fonts in 2023. It comes in 9 weights, and is a variable font with a weight axis.

More pairings for Onest →

Use this pairing on your website

HTML — paste in <head>
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Roboto+Slab:wght@700&family=Onest:wght@400;700&display=swap" rel="stylesheet">
CSS
h1, h2, h3 {
  font-family: 'Roboto Slab', serif;
  font-weight: 700;
}

body {
  font-family: 'Onest', sans-serif;
  font-weight: 400;
  line-height: 1.6;
}

More pairings with Roboto Slab

The art of saying less

Typography sets the tone before a single word is read. A good pairing feels like one voice.

HRoboto SlabBRubikfriendly→

A classic contrast: Roboto Slab's serifs give headlines an editorial, trustworthy voice while Rubik's clean shapes keep body text easy to scan on screens.

Ideas that travel well

Typography sets the tone before a single word is read. A good pairing feels like one voice.

HRoboto SlabBPoppinsfriendly→

A classic contrast: Roboto Slab's serifs give headlines an editorial, trustworthy voice while Poppins's clean shapes keep body text easy to scan on screens.

More pairings with Onest

Design is how it works

Typography sets the tone before a single word is read. A good pairing feels like one voice.

HSource Serif 4BOnesteditorial→

A classic contrast: Source Serif 4's serifs give headlines an editorial, trustworthy voice while Onest's clean shapes keep body text easy to scan on screens.

Everything starts with a sketch

Typography sets the tone before a single word is read. A good pairing feels like one voice.

HBodoni ModaBOnesteditorial→

A classic contrast: Bodoni Moda's serifs give headlines an editorial, trustworthy voice while Onest's clean shapes keep body text easy to scan on screens.

Where craft meets code

Typography sets the tone before a single word is read. A good pairing feels like one voice.

HOnestBMerriweathermoderneditorial→

A modern twist on the classic: Onest keeps headings crisp and contemporary, while Merriweather's serifs guide the eye along longer lines of text.

Frequently asked questions

Do Roboto Slab and Onest go well together?

A classic contrast: Roboto Slab's serifs give headlines an editorial, trustworthy voice while Onest's clean shapes keep body text easy to scan on screens. Onest ships in 9 weights, so you can build captions, buttons and emphasis without adding another family.

Which font should be used for headings?

Use Roboto Slab for headings at weight 700, and Onest for body text at weight 400. You can swap them in the pairing tool to compare.

Are Roboto Slab and Onest free?

Yes — both are open-source fonts on Google Fonts and free for personal and commercial use.