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Free for Commercial Use

Slab Square Silu 5 is a bold, normal width, monoline, upright, normal x-height font visually similar to 'ITC Lubalin Graph' by ITC and 'Haboro Slab' and 'Haboro Slab Soft' by insigne (names referenced only for comparison).

Keywords: headlines, posters, mastheads, packaging, signage, confident, editorial, industrial, collegiate, traditional, impact, stability, legibility, print feel, authority, blocky, bracketed, high contrast, sturdy, ink-trap-like.


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A heavy slab serif with sturdy, rectangular serifs and mostly even stroke weight, giving the letters a compact, built-from-blocks feeling. The caps are wide and authoritative with flat terminals and strong footings, while the lowercase keeps a clear, workmanlike rhythm with a two-storey “a,” a single-storey “g,” and pronounced slab joins on stems like “n” and “m.” Curves (C, O, S) are generous but held firmly by straight-sided structure, and joins show subtle squaring and slight notching where thick strokes meet, reinforcing a carved/printed look. Numerals are robust and readable, with a strong baseline presence and simple, squared-off details that match the alphabet.

Best suited to headlines, mastheads, posters, and packaging where a firm, attention-holding serif is needed. It can also work for short to medium text blocks in print-style layouts when a dense, authoritative texture is desirable, and for signage applications that benefit from strong slab serifs and sturdy letterforms.

The overall tone is assertive and dependable, with an editorial seriousness that also nods to collegiate and industrial signage. Its strong slabs and compact color suggest practicality and tradition rather than delicacy, making text feel anchored and emphatic.

The design appears intended to deliver a bold, dependable slab-serif voice with strong legibility and a distinctly constructed, print-forward presence. It emphasizes stability and impact through squared terminals, substantial serifs, and consistent, sturdy proportions.

In paragraph settings the weight produces a dark, even texture with clear word shapes; the pronounced serifs and squared terminals add snap to the rhythm, especially in mixed case. The uppercase reads especially commanding in short lines, while the lowercase maintains clarity through open counters and straightforward forms.

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
`
´
¯
¨
¸