SYMBOL

🅾 O button (blood type)

🅾

Unicode information

NameO button (blood type)

Unicode nameNEGATIVE SQUARED LATIN CAPITAL LETTER O

Code pointU+1F17E

HTML decimal🅾

HTML hex🅾

CSS\1f17e

JavaScript\u{1F17E}

CategoryShapes

Unicode17.0

Meaning of 🅾 O button (blood type)

The 🅾 character is listed as O button (blood type) in SymbolDex. Its technical Unicode name is NEGATIVE SQUARED LATIN CAPITAL LETTER O. It is a geometric or graphic shape used as a marker, diagram element or decoration.

Common uses

Diagrams and schemes.
Bullets and markers.
Design and decorative text.

How to type 🅾 on Windows, Mac and mobile

Windows

The universal method is to use Copy on this page and paste 🅾. On Windows 10/11 you can press Win + . and browse the Symbols section, or open Character Map (charmap) to locate characters supported by your fonts.

Mac

Press Control + Command + Space to open Character Viewer, search for O button (blood type), then double-click it to insert the character.

Microsoft Word

Type 1F17E without U+, then immediately press Alt + X. Word converts the code into 🅾. You can also use Insert → Symbol.

Google Docs

Open Insert → Special characters and search by name, or paste 🅾 directly. For emoji, you can also use your operating system emoji picker.

iPhone / iPad

iOS does not provide a direct Unicode-code entry method for every symbol. Copy 🅾 from SymbolDex or check long-press variants on related keys. For frequent use, create a shortcut under Settings → General → Keyboard → Text Replacement.

Android

Availability varies by Android keyboard. In Gboard, browse the symbols panel and long-press related keys for variants. If it is not available, copy 🅾 from SymbolDex and paste it where needed.

Linux

In many Linux apps using GTK/IBus, press Ctrl + Shift + U, type 1f17e, then confirm with Enter or Space. If your app does not support this method, copy and paste 🅾.

Web and programming codes

Copy the representation you need for HTML, CSS, JavaScript or Python. For emoji sequences, SymbolDex includes every code point in the correct order.

HTML decimal🅾

HTML hex🅾

CSS content\1f17e

JavaScript\u{1F17E}

Python\U0001F17E

Unicode text🅾

Usage examples

🅾 — O button (blood type)

Unicode: U+1F17E

HTML: 🅾

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