The invention relates to a tire having a visible surface comprising patterns defining a contrast relative to said surface, said pattern including, on the entire surface thereof, a plurality of strands (21) with a density of at least five strands per mm2, or a plurality of blades (22) which are substantially parallel to one another and arranged according to a pitch lower than 0.5 mm, each strand having a mean cross-section, the diameter of which is between 0.03 and 0.5 mm, or each blade having a mean length of between 0.03 and 0.6 mm, characterized in that the walls of the strands (21) or the blades have, on at least a quarter of the surface thereof, a mean roughness Rz of between 5 [mu]m and 30 [mu]m.