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TT Rationalist
22 styles
Type foundryFonts & StylesSlab SerifTT Rationalist

TT Rationalist

TT Rationalist is a contemporary slab serif that balances function and originality. It works equally well in headlines and text blocks.
Single style: from $47.99
Full family: from $389 22 styles

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per style $17.68
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22 styles
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20 styles
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2 styles
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Testers

TT Rationalist
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The TT Rationalist typeface consists of 22 two styles

TT Rationalist
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Unlike the geometric sans serifs TT Norms® Pro and TT Commons™ Pro, TT Rationalist is a slab serif typeface. It is functional and original. Slabs are characterized by massive rectangular serifs, but in TT Rationalist they are trapezoidal and refined, which makes them look modern. Speaking of modernity, when creating the typeface, we wanted to avoid the excessive historicism that can be seen in many slab serif fonts. We have been particularly careful working on the Black style, which in the first sketches had something in common with the Wild West posters. When we balanced out the excessive contrast caused by visual compensation, the font stopped evoking retro associations. Now TT Rationalist Black is perfect for headlines, especially on posters and posters, and works great with Light styles in TT Norms® Pro and TT Commons™ Pro.

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It supports over 235 languages and contains 31 OpenType features

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TT Rationalist Black is perfect for headlines

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Variable axes
wght

Los Angeles Times (Sep 8, 1929)

Ideal font pairs with TT Rationalist

What is a font pair, and what does it serve for?

A font pair is a combination of two fonts within one text block. Most often, one of the fonts in a pair is a more expressive headline font, and the other one serves to communicate information. Such fonts complement each other and help designers solve various tasks, like highlighting key elements, adding emotional expressiveness to the project, or separating semantic blocks.

How to choose fonts for a project: Several general recommendations

To begin with, establish the project's tone. Choose the fonts that stylistically match the main idea. After that, you need to determine the functions of each font in the project and their hierarchy: which font will complement the design and which one will serve to attract attention as the main element. You need to assess the difference between the fonts and decide what kind of information each of them should convey. First, we recommend choosing the base font you will use most, and then you can find a suitable pair for it.

Core principles of font pairing and recommendations from designers

The main rule you should follow when matching two fonts is that both similarities and differences must be visible between them. You can highlight the coherence of fonts by the following characteristics: contrast, proportions, width, openness of characters, individual letter shapes, and overall tone. Feel free to experiment with different combinations. We also recommend analyzing the projects you like: this way, you can enhance your visual skills, elevate your knowledge base, and gain confidence in dealing with typography.

Description

About font family TT Rationalist
230+ Language support

Meet TT Rationalist version 1.100!

We have redrawn the font and added new features, glyphs, languages, and stylistic sets.

TT Rationalist is a functional and original slab serif with a contemporary design. When creating it, we aimed to avoid the excessive historicism found in many slab serifs. Therefore, one of the characteristic features of TT Rationalist is elegant trapezoidal serifs instead of the “traditional” massive rectangular ones. The low contrast also makes the font design more modern.

In this version, we reimagined and balanced the design of TT Rationalist: we changed the proportions and contrast, making the text typing softer and more uniform. As a result, the font has become more suitable for running text. Additionally, curved legs replaced serifs in all styles for characters like “R”, “Яя”, “Кк”, and “Жж”. This gave the font expressiveness and sophistication. The forms of the true italics also became more rounded and calligraphic—this is especially noticeable in the characters “k”, “y”, “x”, “v”, and “w”.

We also increased the number of OpenType features in the updated version, expanded the character set (supplementing Latin and Cyrillic), and added new stylistic sets and languages. The typeface includes small caps for Latin and Cyrillic fonts, and alternative versions of the ampersand, the letter “g” in upright styles, and “k” in italics.

TT Rationalist is perfect for both headlines and running text. This font looks especially aesthetic in printed materials (books, magazines, brochures). The Black style is ideal for headlines, posters, and event announcements.

TT Rationalist 1.100 includes:

  • 22 styles: 10 uprights, 10 italics, and 2 variable fonts
  • 1,127 glyphs per style
  • 31 OpenType features
  • Over 235 languages

Release and update date

Release: 28 October, 2021

Last update: 3 March, 2026

What's changed in the font:
  • Proportions and contrast have changed, and the text texture has become softer and more uniform. As a result, the font has become more suitable for running text.
  • Curved legs replaced serifs in all styles for characters like “R”, “Яя”, “Кк”, and “Жж,” and the forms of true italics became more rounded and calligraphic.
  • The number of OpenType features increased from 27 to 31.
  • The number of glyphs per style increased from 950 to 1,127.
  • New stylistic sets appeared: SS09 (Bashkir Localization), SS10 (Chuvash Localization), SS11 (Bulgarian Localization), SS12 (Serbian Localization).
  • The number of languages increased from over 220 to over 235.

Additionally

Specimen

Download font specimen (pdf)

Poster Images

Graphic presentation at Behance

Custom version

Looking for a custom version of this font?

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Character Set

Basic Latin Basic Cyrillic Extended Latin Extended Cyrillic Fractions Proportional Lining Figures and Currencies Other Figures Punctuation and Symbols Math Symbols Arrows
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z a b c d e f g h i j k l m n o p q r s t u v w x y z
А Б В Г Д Е Ё Ж З И Й К Л М Н О П Р С Т У Ф Х Ц Ч Ш Щ Ъ Ы Ь Э Ю Я Ѓ Ґ Ќ Є Ї Љ Њ Ћ Ђ Ў Џ а б в г д е ё ж з и й к л м н о п р с т у ф х ц ч ш щ ъ ы ь э ю я ѓ ґ ќ є ї љ њ ћ ђ ў џ
Á Ă Ǎ Â Ä À Ā Ą Å Ǻ Ã Æ Ǽ Ć Č Ç Ĉ Ċ Ð Ď Đ DZ DŽ Dz Dž É Ĕ Ě Ê Ë Ė È Ē Ę Ə Ǵ Ğ Ĝ Ǧ Ģ Ġ Ħ Ĥ Ȟ Í Ĭ Î Ï İ Ì Ī Į Ĩ IJ Ĵ Ķ Ĺ Ľ Ļ Ł LJ Lj Ń Ň Ņ Ŋ Ñ NJ Nj Ó Ŏ Ô Ö Ò Ő Ō Ø Ǿ Õ Œ Þ Ŕ Ř Ŗ Ś Š Ŝ Ș Ş Ŧ Ť Ț Ţ Ú Ʉ Ŭ Û Ǔ Ü Ù Ű Ū Ų Ů Ũ Ŵ Ý Ŷ Ÿ Ȳ Ź Ž Żá ă ǎ â ä à ā ą å ǻ ã æ ǽ ć č ç ĉ ċ ð ď đ dz dž é ĕ ě ê ë ė è ē ę ə ǵ ğ ĝ ǧ ģ ġ ħ ĥ ȟ ı í ĭ î ï i ì ī į ĩ ij ȷ ĵ ķ ĺ ľ ļ ŀ ł lj ḿ ń ň ņ ŋ ñ nj ó ŏ ô ö ò ő ō ø ǿ õ œ þ ŕ ř ŗ ś š ş ŝ ș ß ŧ ť ţ ț ú ʉ ŭ û ǔ ü ù ű ū ų ů. ũ ŵ ý ŷ ÿ ȳ ź ž ż
Ӑ Ӕ Ғ Ӗ Ѐ Җ Ӂ Ҙ Ѝ Ӣ Ӏ Қ Ҡ Ң Ӧ Ә Ҫ Ӱ Ӳ Ӯ Ү Ұ Ҳ Ҷ Һ ӑ ӕ ғ ӗ ѐ җ ӂ ҙ ѝ ӣ ӏ қ ҡ ң ӧ ө ә ҫ ӱ ӳ ӯ ү ұ ҳ ҷ һ
½ ¼ ¾
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OpenType features

ss01 | Alternative g

g

g

ss02 | Alternative Ampersand

&

&

ss03 | Circled Figures

12

12

ss04 | Negative Circled Figures

34

34

onum | Oldstyle Figures

173

173

case | Case Sensitive Forms

({[H]})

({[H]})

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