Warning Sign Icon - High-Contrast Hazard Alert Symbol #17138 (License: Personal Use)

This high-contrast warning icon features a glossy red equilateral triangle with a thick black border and a centered white exclamation mark, designed for maximum visibility and instant recognition. The gradient shading and subtle highlights give it a 3D appearance, enhancing its prominence on digital or printed interfaces. It conveys urgency and serves as a standard visual cue for danger, errors, or required user attention.

Commonly used in UI/UX design for error messages, system alerts, safety documentation, and web forms to indicate warnings or required corrections; matches user intent for quick hazard recognition and risk awareness.