Warning Signs

SymbolNameUnicodeAlt CodeHtml HexHtml Dec
☠Skull And Crossbones

U+2620

2620

&#x2620

&#9760

☡Caution Sign

U+2621

2621

&#x2621

&#9761

☢Radioactive Sign

U+2622

2622

&#x2622

&#9762

☣Biohazard Sign

U+2623

2623

&#x2623

&#9763

References:

Miscellaneous Symbols charts - unicodeMiscellaneous Symbols And Pictographs charts - unicodeDingbats charts - unicode