The Unicode emoji showing a red exclamation mark inside a triangle is WARNING.
WARNING is a safety symbol used to draw attention to danger, risk, or a serious caution. Its familiar design places an exclamation mark inside a triangular sign, often with a red border or red coloring in platform artwork. The emoji’s code point is U+26A0, and its Unicode name is WARNING.
The underlying character predates modern emoji usage as a general text symbol. It belongs to Unicode’s Miscellaneous Symbols block, where it is encoded alongside other signs and pictographs. A variation selector may be used to request emoji-style presentation on systems that support both text and emoji presentation.
WARNING is easy to confuse with the ordinary EXCLAMATION MARK emoji, which is an exclamation mark inside a red button-like shape. Unicode names, code points, and platform artwork help distinguish these visually similar symbols.