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Free for Commercial Use

Slab Square Otko 3 is a regular weight, normal width, low contrast, upright, normal x-height font visually similar to 'Codename FX' and 'Codename FX Variable' by Differentialtype (names referenced only for comparison).

Keywords: editorial, book text, magazines, headlines, institutional, literary, trustworthy, traditional, readability, authority, durability, classic utility, slab serif, bracketed serifs, square terminals, robust, crisp.


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A sturdy slab-serif with clear, rectangular serifs and mostly square-ended terminals. Strokes are even and low-contrast, with confident verticals and rounded bowls that stay open and readable. The design shows a moderate x-height and a steady rhythm, with slightly varied letter widths that keep spacing lively without feeling irregular. Numerals and capitals share the same grounded, structured construction, giving the face a consistent, workmanlike texture in text.

Well-suited to editorial typography where a solid, authoritative serif is needed, including magazines, book interiors, and section heads. It can also serve for institutional materials and straightforward branding, and it holds up well in short headlines where the slab details can be appreciated.

The overall tone is dependable and editorial, balancing a classic bookish feel with a firmer, more utilitarian edge. Its bold, squared serifs add authority and a hint of vintage printing without becoming decorative.

Likely intended as a practical slab-serif for general-purpose composition, emphasizing clarity and consistency while delivering a firm, traditional presence. The design prioritizes robust letterforms and recognizable shapes that remain legible across mixed-case text and numerals.

In the text sample, the serifs remain prominent at reading sizes and help guide horizontal flow, while the round letters keep the color from becoming overly dark. The uppercase forms feel particularly stable and sign-like, making the font read as confident and deliberate.

120px
108px
96px
84px
72px
64px
56px
48px
44px
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36px
32px
30px
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9px
8px
Letter — Basic Uppercase Latin
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
Letter — Basic Lowercase Latin
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
Number — Decimal Digit
0
1
2
3
4
5
6
7
8
9
Letter — Extended Uppercase Latin
À
Á
Â
Ã
Ä
Å
Æ
Ç
È
É
Ê
Ë
Ì
Í
Î
Ï
Ñ
Ò
Ó
Ô
Õ
Ö
Ø
Ù
Ú
Û
Ü
Ý
Ć
Č
Đ
Ė
Ę
Ě
Ğ
Į
İ
Ľ
Ł
Ń
Ő
Œ
Ś
Ş
Š
Ū
Ű
Ų
Ŵ
Ŷ
Ÿ
Ź
Ž
Letter — Extended Lowercase Latin
ß
à
á
â
ã
ä
å
æ
ç
è
é
ê
ë
ì
í
î
ï
ñ
ò
ó
ô
õ
ö
ø
ù
ú
û
ü
ý
ÿ
ć
č
đ
ė
ę
ě
ğ
į
ı
ľ
ł
ń
ő
œ
ś
ş
š
ū
ű
ų
ŵ
ŷ
ź
ž
Letter — Superscript Latin
ª
º
Number — Superscript
¹
²
³
Number — Fraction
½
¼
¾
Punctuation
!
#
*
,
.
/
:
;
?
\
¡
·
¿
Punctuation — Quote
"
'
«
»
Punctuation — Parenthesis
(
)
[
]
{
}
Punctuation — Dash
-
_
Symbol
&
@
|
¦
§
©
®
°
Symbol — Currency
$
¢
£
¤
¥
Symbol — Math
%
+
<
=
>
~
¬
±
^
µ
×
÷
Diacritics
`
´
¯
¨
¸