A background should sit behind the text, not in place of it. This paragraph lies on the tile at its true scale — if it reads without effort, the tile can go under content.
Pale icy-blue trefoil-like motifs with dark triangular centers sit on a charcoal-slate ground, arranged in staggered rows that alternate upright and inverted orientations, creating a rhythmic zigzag of lighter forms across the field.
CC0 — use it for anything, no attribution needed.