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Free for Commercial Use

Slab Square Opza 4 is a regular weight, normal width, medium contrast, upright, normal x-height font.

Keywords: book text, editorial, headlines, academic, branding, scholarly, traditional, authoritative, bookish, readability, authority, print tradition, clarity, versatility, slab serif, bracketed serifs, ball terminals, calligraphic stress, sharp joins.


Free for commercial use
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A sturdy slab serif with pronounced, squared serifs that read as mostly flat-ended and generously proportioned, paired with moderate contrast and an upright stance. Curves show a subtle calligraphic influence, with slightly tapered joins and occasional ball/teardrop terminals in the lowercase, while stems remain firm and even. Capitals are broad and steady, and the overall rhythm is clear and measured; figures are open and readable with classic proportions and straightforward forms.

Well-suited for long-form editorial and book typography where a robust serif helps maintain clarity, and it also performs confidently in headlines and subheads that need a classic, authoritative voice. It can support branding and institutional materials that benefit from a traditional, trustworthy typographic palette.

The tone is formal and dependable, evoking printed literature, reference works, and institutional communication. Its confident slabs and calm modulation add a sense of authority, while the softer, more human details in the lowercase keep it from feeling mechanical.

Likely intended to modernize a traditional slab-serif reading experience by combining emphatic, square serifs with restrained modulation and approachable lowercase detailing, producing a versatile face for both text and display settings.

The design balances squared structure with gently rounded shaping, creating a pragmatic, text-friendly texture that remains crisp at larger sizes. Serifs are visually prominent without becoming overly decorative, supporting strong word shapes and a stable baseline.

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
`
´
¯
¨
¸