Alert Sign Triangle black outline icon

About the Alert Sign Triangle black outline icon

This icon is the standard caution triangle: an equilateral triangle with softly rounded corners, enclosing a heavy tapered exclamation mark and a round dot beneath it. It signals danger, system errors, unsaved changes and anything a user must read before continuing. Use it in form validation messages, toast and modal alerts, machinery and chemical safety labels, dashboard monitoring panels, and road or workplace signage artwork.

The exclamation is weighted wider at the top and tapers downward, giving the mark visual force inside the thin triangle outline. The rounded vertices keep it friendly enough for interface use. It pairs with info, error-circle and check-circle icons in the same status family. Place it at 16–24 px beside inline messages, larger for full-screen warnings.

This is the black outline version of the alert sign triangle icon: even, monoline strokes that stay crisp at small sizes and suit clean, minimal interfaces, wireframes and light backgrounds.

It downloads free as an SVG vector or transparent PNG in seven sizes, and the free online editor lets you recolor it, apply gold, silver, neon and gradient styles, add animation, or convert it to EPS, PDF and DXF.

Free for personal and commercial use with attribution.