Prohibition Symbol Icon - Universal No Entry Sign #1740826 (License: Personal Use)

This iconic symbol consists of a thick red circle intersected by a diagonal red line from upper left to lower right, set against a solid black background for maximum contrast and visibility. It is standardized in ISO 3864 and widely adopted in traffic signs, safety warnings, and digital interfaces to communicate prohibition clearly and instantly. Its simplicity ensures cross-cultural recognition regardless of language.

Used on websites, apps, and printed materials to denote restricted actions (e.g., “No Smoking,” “Do Not Enter”), in regulatory compliance graphics, or as a UI element to disable features. Matches user intent for understanding restrictions, safety guidelines, or interface feedback.