Warning black outline icon
Outline warning sign with an exclamation mark in a rounded triangle inside a circle
About the Warning black outline icon
A rounded-corner triangle holds a tapered exclamation mark with a separate square dot, and the whole sign sits centered inside a thin circular border. It is the universal caution marker, useful for form validation and error states in apps, system alert dialogs, road and construction signage, safety manuals and hazard labeling on equipment or packaging.
The circle-in-triangle nesting leaves generous breathing room, so the mark still reads at badge sizes, while the thinner outer ring keeps the triangle dominant. Use it beside info, error and success circle icons for a consistent status row, and reserve the filled style for critical alerts where the shape must stand out fast.
This is the black outline version of the warning 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.
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