Alert Sign Triangle black outline icon

About the Alert Sign Triangle black outline icon

An equilateral triangle with softly rounded corners holding a centered exclamation mark whose stroke tapers from thick at the top to a point above a separate round dot. It is the universal shorthand for caution, error and important notice. Use it in form-validation messages, system error banners, safety signage, dashboard warnings and app permission dialogs.

The triangle sits on a flat base with generous inner margin, so the exclamation stays legible even when the icon is scaled down to toolbar size. It pairs with info circle, error cross and success check icons for a full status set. Tint it amber in interfaces to separate warnings from hard errors.

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.