# 𝕆 U+1D546 MATHEMATICAL DOUBLE-STRUCK CAPITAL O

Capital O in blackboard bold, a doubled-stroke oval, used in mathematical notation such as octonions and for stylized text.

| | |
|---|---|
| Character | `𝕆` |
| Codepoint | U+1D546 |
| Name | MATHEMATICAL DOUBLE-STRUCK CAPITAL O |
| Block | [Mathematical Alphanumeric Symbols](https://unicodekit.com/block/mathematical-alphanumeric-symbols) |
| Script | Common |
| Category | Uppercase Letter (Lu) |
| Unicode version | 3.1 |
| HTML | `𝕆` `𝕆` |
| CSS | `\1D546` |
| JavaScript | `\u{1D546}` |
| UTF-8 | F0 9D 95 86 |
| UTF-16 | D835 DD46 |
| Decomposition | font U+004F |

## Related characters

- 𝕄 [U+1D544 MATHEMATICAL DOUBLE-STRUCK CAPITAL M](https://unicodekit.com/char/1D544)
- 𝕃 [U+1D543 MATHEMATICAL DOUBLE-STRUCK CAPITAL L](https://unicodekit.com/char/1D543)
- 𝕂 [U+1D542 MATHEMATICAL DOUBLE-STRUCK CAPITAL K](https://unicodekit.com/char/1D542)
- 𝕊 [U+1D54A MATHEMATICAL DOUBLE-STRUCK CAPITAL S](https://unicodekit.com/char/1D54A)
- 𝕁 [U+1D541 MATHEMATICAL DOUBLE-STRUCK CAPITAL J](https://unicodekit.com/char/1D541)
- 𝕋 [U+1D54B MATHEMATICAL DOUBLE-STRUCK CAPITAL T](https://unicodekit.com/char/1D54B)
- 𝕀 [U+1D540 MATHEMATICAL DOUBLE-STRUCK CAPITAL I](https://unicodekit.com/char/1D540)
- 𝕌 [U+1D54C MATHEMATICAL DOUBLE-STRUCK CAPITAL U](https://unicodekit.com/char/1D54C)
- 𝕍 [U+1D54D MATHEMATICAL DOUBLE-STRUCK CAPITAL V](https://unicodekit.com/char/1D54D)
- 𝔾 [U+1D53E MATHEMATICAL DOUBLE-STRUCK CAPITAL G](https://unicodekit.com/char/1D53E)
- 𝕎 [U+1D54E MATHEMATICAL DOUBLE-STRUCK CAPITAL W](https://unicodekit.com/char/1D54E)
- 𝔽 [U+1D53D MATHEMATICAL DOUBLE-STRUCK CAPITAL F](https://unicodekit.com/char/1D53D)

Page: https://unicodekit.com/char/1D546 · JSON: https://unicodekit.com/characters/1D546