# 🅾 U+1F17E NEGATIVE SQUARED LATIN CAPITAL LETTER O

White letter O on a black square, the O button used for blood type O.

| | |
|---|---|
| Character | `🅾` |
| Codepoint | U+1F17E |
| Name | NEGATIVE SQUARED LATIN CAPITAL LETTER O |
| Also known as | blood type O |
| Block | [Enclosed Alphanumeric Supplement](https://unicodekit.com/block/enclosed-alphanumeric-supplement) |
| Script | Common |
| Category | Other Symbol (So) |
| Unicode version | 6.0 |
| HTML | `🅾` `🅾` |
| CSS | `\1F17E` |
| JavaScript | `\u{1F17E}` |
| UTF-8 | F0 9F 85 BE |
| UTF-16 | D83C DD7E |
| Emoji | O button (blood type) (Symbols › alphanum) |
| Emoji keywords | blood, button, O, type |

## Related characters

- 🆖 [U+1F196 SQUARED NG](https://unicodekit.com/char/1F196)
- 🆕 [U+1F195 SQUARED NEW](https://unicodekit.com/char/1F195)
- 🆗 [U+1F197 SQUARED OK](https://unicodekit.com/char/1F197)
- 🅿 [U+1F17F NEGATIVE SQUARED LATIN CAPITAL LETTER P](https://unicodekit.com/char/1F17F)
- Ⓜ [U+24C2 CIRCLED LATIN CAPITAL LETTER M](https://unicodekit.com/char/24C2)
- 🆔 [U+1F194 SQUARED ID](https://unicodekit.com/char/1F194)
- 🆘 [U+1F198 SQUARED SOS](https://unicodekit.com/char/1F198)
- 🆙 [U+1F199 SQUARED UP WITH EXCLAMATION MARK](https://unicodekit.com/char/1F199)
- ℹ [U+2139 INFORMATION SOURCE](https://unicodekit.com/char/2139)
- 🆚 [U+1F19A SQUARED VS](https://unicodekit.com/char/1F19A)
- 🆓 [U+1F193 SQUARED FREE](https://unicodekit.com/char/1F193)
- 🈁 [U+1F201 SQUARED KATAKANA KOKO](https://unicodekit.com/char/1F201)

Page: https://unicodekit.com/char/1F17E · JSON: https://unicodekit.com/characters/1F17E