Error Warning Triangle black outline icon
Outline warning triangle with a second inner border and a bold exclamation mark in the center
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About the Error Warning Triangle black outline icon
A triangle with rounded corners is drawn twice, one outline inside the other, framing a thick exclamation mark with a separate round dot beneath it. The shape is the universal sign for a mistake, hazard or blocked action. Use it for form validation messages, failed payment and upload states, browser security warnings, road safety graphics and error screens in mobile apps.
The inner border sits close to the outer edge, giving the icon the weight of a printed hazard sign, while the exclamation stroke tapers slightly toward its base and stays centered. It matches check circle, info and ban icons in an alert set. At 16 px the double border can fill in, so use the single line version.
This is the black outline version of the error warning triangle icon: even, monoline strokes that stay crisp at small sizes and suit clean, minimal interfaces, wireframes and light backgrounds.
Download it free as a scalable SVG vector or transparent-background PNG in seven sizes (16 to 512px), copy the SVG code straight into your project, or open it in the free online editor to change colors, apply gold, silver, neon and gradient styles, animate it, or convert it to EPS, PDF and DXF.
Free for personal and commercial use with attribution.
