Octagon Double Border black outline icon
Octagon shape drawn with an outer and an inner border and rounded corners
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About the Octagon Double Border black outline icon
An eight-sided polygon is drawn twice: an outer octagon with softly rounded corners and a second octagon nested just inside it, leaving an empty center ready for a letter, number or smaller mark. The silhouette carries the familiar stop-sign reading of caution and prohibition. Use it for warning banners, spam and block states, geometry lessons, badge frames and diagram building blocks.
Both rings share the same stroke weight and corner radius, so the gap between them stays even and the shape reads cleanly at badge size. Pair it with triangle, hexagon and circle frames from the same geometry set, and center any glyph you drop inside on the optical middle.
This is the black outline version of the octagon double border 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.
