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Caution Sign Symbol

A symbol from the Warning Symbols collection. Click the symbol or the button below to copy.

Warning Symbols collection
Symbol
Unicode
U+2621
HTML entity
☡

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transparent background

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5 of 22 in the warning symbols collection

About the caution sign symbol

The Caution Sign is a black-bordered triangle with an exclamation mark inside, set against a white or transparent center. It appears in technical diagrams, signage mockups, and instructional materials where a generic warning indicator is needed, distinct from the more common yellow warning triangle used in traffic contexts.

How to type Caution Sign

Native keyboard shortcuts for each operating system — derived from the codepoint, so the steps below are always accurate.

Windows

2 options
  1. In Word / Outlook: type 2621 then press Alt + X.
  2. Anywhere: press Win + . to open the emoji & symbol picker, then search.

macOS

2 options
  1. Enable “Unicode Hex Input” in System Settings → Keyboard, then hold Option and type 2621.
  2. Or: Control + Command + Space opens the Character Viewer — search by name.

Linux

1 step
  1. Press Ctrl + Shift + U, type 2621, then press Enter or Space.

Copy in every format

Every form of this character — for HTML, CSS, JavaScript, URLs and more. Click any value to copy.

Related warning symbols

Other warning symbols you can copy and paste — explore similar Unicode characters from the same family.

More warning symbols

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