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Slab Square Opma 9 is a very bold, wide, low contrast, upright, tall x-height font.

Keywords: headlines, posters, sports branding, packaging, signage, industrial, collegiate, retro, sturdy, assertive, impact, sturdiness, retro display, signage clarity, athletic tone, blocky, octagonal, squared, stencil-like, high impact.

A heavy, block-built slab serif with squared, octagonal corner cuts and crisp, flat terminals. The strokes are consistently thick and geometric, with minimal modulation and a compact, engineered feel to counters and joins. Serifs read as rectangular slabs integrated into the stems, while many curves are partially faceted into angled segments, giving round letters a machined, chamfered look. The lowercase follows the same robust structure with a prominent x-height and simplified forms that keep texture dense and even in text.

Best suited to short, high-impact settings such as headlines, posters, sports or varsity-style branding, packaging, and bold signage where the faceted slabs and dense texture can carry visual weight. It can also work for display pull quotes or labels when a sturdy, engineered tone is desired.

The overall tone is confident and workmanlike, leaning into an industrial, collegiate poster aesthetic. Its faceted geometry and unapologetically bold mass suggest strength, utility, and a slightly vintage, athletic flavor rather than delicacy or refinement.

The design appears intended to deliver maximum impact with a geometric, slab-serif structure that stays consistent across cases and figures. The chamfered corners and squared terminals suggest a deliberate nod to stamped lettering, athletic signage, and industrial labeling—prioritizing strong silhouette and immediate recognition.

In paragraph settings the face produces a dark, uniform color with strong rectangular rhythm, and the angular rounding can make letterforms feel intentionally “cut” or stamped. Numerals match the same chamfered geometry and read as sign-like and emphatic.