Prohibition Symbol | Universal No Entry Sign for Safety and Compliance #161055 (License: Personal Use)

This high-contrast symbol consists of a thick red circle intersected by a red diagonal line from upper left to lower right, set against a black background. It is standardized under ISO 7010 as the universal “prohibited” sign, used in traffic control, workplace safety, public facilities, and digital interfaces to clearly communicate restrictions without language barriers.

Commonly deployed on warning signs, digital UIs (e.g., disabled buttons), safety manuals, and regulatory documentation; users seek it when looking for visual cues about restrictions, bans, or hazard warnings.