U+2623
Biohazard☣
Biohazard is a monochrome text character from the Unicode Miscellaneous Symbols block, listed here under Technical & UI and Signs & Warnings. Copy it with one click, or use the hex, octal, decimal and HTML entity codes below to embed it in web pages, code, and documents. It is often searched for as "danger".
Quick facts
- Unicode
- U+2623
- Decimal
- 9763
- Hex
- 0x2623
- Octal
- 0o23043
Unicode identity
| Format | Value | Copy |
|---|---|---|
| Code pointOfficial Unicode notation | U+2623 | |
| Official nameUnicodeData.txt, Unicode 18.0.0 | BIOHAZARD SIGN | |
| DecimalBase 10 | 9763 | |
| HexadecimalBase 16 | 0x2623 | |
| OctalBase 8 | 0o23043 | |
| BinaryBase 2 | 0010011000100011 | |
| General categorySymbol, other | So | |
| Unicode blockU+2600–U+26FF | Miscellaneous Symbols | |
| Plane | Basic Multilingual Plane (BMP, Plane 0) |
HTML & CSS
| Format | Value | Copy |
|---|---|---|
| HTML entity (decimal) | ☣ | |
| HTML entity (hex) | ☣ | |
| CSS content escapeUse inside content: "…" | \2623 | |
| URL encodedPercent-encoded UTF-8 | %E2%98%A3 |
Programming languages
| Format | Value | Copy |
|---|---|---|
| JavaScript / TypeScript | \u2623 | |
| JSONUTF-16 surrogate pairs | \u2623 | |
| Python | \u2623 | |
| Java / C# / Kotlin | \u2623 |
Byte encodings
| Format | Value | Copy |
|---|---|---|
| UTF-83 bytes | E2 98 A3 | |
| UTF-16 (BE) | 2623 | |
| UTF-32 (BE) | 00002623 |
How to type Biohazard
Windows
Hold Alt and type +2623 with the hex numeric keypad option enabled, or type 2623 then press Alt+X in Word and most Office apps.
macOS
Enable the Unicode Hex Input keyboard, hold Option, and type 2623. Or open Character Viewer (Control+Command+Space) and search "Biohazard".
Linux
Press Ctrl+Shift+U, type 2623, then press Space or Enter in GTK apps. IBus and most terminals support the same sequence.
HTML, CSS & code
Paste the character directly, or use the escapes above: ☣ in HTML, \2623 in CSS, and \u2623 in JavaScript.
Official Unicode reference
- Character name
- BIOHAZARD SIGN
- Block
- Miscellaneous Symbols (U+2600–U+26FF)
- General category
- So — Symbol, other
Data from the Unicode Character Database, version 18.0.0. See the official code chart for the Miscellaneous Symbols block: U2600.pdf (PDF, unicode.org).
Frequently asked questions
How do I copy the Biohazard symbol?
Click the Copy button at the top of this page, or select ☣ and press Ctrl+C (Cmd+C on Mac). It is plain Unicode text, so it pastes into documents, chats, code, and design tools.
What is the Unicode code point for Biohazard?
Biohazard is U+2623 (decimal 9763, hexadecimal 0x2623, octal 0o23043). It lives in the Miscellaneous Symbols block (U+2600–U+26FF) of the Basic Multilingual Plane (BMP, Plane 0).
What is the official Unicode name of Biohazard?
The Unicode Standard (version 18.0.0) names this character "BIOHAZARD SIGN". Its General_Category is So (Symbol, other).
What is the HTML code for Biohazard?
Use ☣ or ☣. In CSS, use content: "\2623".
How do I type Biohazard in code?
JavaScript: "\u2623". Python: "\u2623". JSON and Java: "\u2623". The UTF-8 byte sequence is E2 98 A3.
Is Biohazard an emoji?
No. Biohazard is a text symbol and renders as a monochrome glyph in the current font. Some platforms may offer an emoji variant when U+FE0F is appended.