IBM Plex Serif

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What do I do with this?

Just want to use the font? Click "Get this font on Google Fonts" to download it or add it directly to a document, design tool (like Canva or Photoshop), or your computer's font list.

Building a website? Click "Copy Font Code" to copy a short snippet, then paste it into your website's HTML (usually inside the <head> section) to use this font on your site.

IBM Plex Serif is a contemporary serif typeface developed by Mike Abbink at IBM in collaboration with Bold Monday. It carries a rational, structured personality that reflects IBM's engineering heritage while remaining approachable and readable. The letterforms strike a deliberate balance between classical serif traditions and modern geometric precision, with slightly condensed proportions and clean stroke contrast that give it a professional, no-nonsense quality. It reads as confident without being stiff, and it holds up well at both large display sizes and smaller body text, making it a genuinely versatile workhorse rather than a decorative choice.

For real-world applications, IBM Plex Serif works well as a primary typeface for technology company websites and annual reports where credibility and clarity matter more than personality. It suits editorial and long-form content platforms, particularly those covering finance, science, or policy, where readers expect a serious tone and sustained reading comfort. It also fits naturally into corporate branding systems that need a serif counterpart to a sans-serif primary font, especially when the brand wants to signal heritage or expertise without defaulting to something like Times New Roman.

Best suited for: Consider IBM Plex Serif for corporate communications, editorial layouts, financial reporting, and technology-focused content where professional credibility and sustained readability are priorities.

Design considerations: The typeface offers a broad weight range from 100 to 700, supporting flexible typographic hierarchies across different contexts and screen sizes. Its slightly condensed proportions and geometric precision work particularly well in structured layouts where clarity and efficiency align with brand values.

Pairing guidance: IBM Plex Serif pairs effectively with IBM Plex Sans for cohesive corporate systems where the serif serves body text or secondary roles while the sans-serif anchors headlines, with Lora as an alternative serif for editorial contexts seeking slightly warmer character, and Space Mono for technical content or code-adjacent applications requiring monospaced clarity.

Pairs well with

IBM Plex Serif at a glance

All 14 IBM Plex Serif styles

IBM Plex Serif character map

Which languages does IBM Plex Serif support?

IBM Plex Serif includes 5 character sets:

• Cyrillic: Russian, Ukrainian, Bulgarian, Serbian and other Cyrillic-script languages
• Cyrillic Extended: additional Cyrillic letters used in languages such as Kazakh, Tatar and Bashkir
• Latin: English, Spanish, French, German, Italian, Portuguese and other Western European languages
• Latin Extended: Central and Eastern European languages such as Polish, Czech, Turkish, Romanian and Hungarian
• Vietnamese: Vietnamese, including its stacked tone marks

Can I use IBM Plex Serif commercially?

Yes, it's free for personal and commercial use. IBM Plex Serif is released under the SIL Open Font License 1.1. You can use it in logos, websites, apps, videos, printed products and merchandise without paying or asking permission. The one thing you can't do is sell the font file on its own.

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IBM Plex Serif FAQ