# 𝔹 U+1D539 MATHEMATICAL DOUBLE-STRUCK CAPITAL B

Capital B in blackboard bold with doubled outlined strokes, used in math notation such as Boolean domains and for stylized text.

| | |
|---|---|
| Character | `𝔹` |
| Codepoint | U+1D539 |
| Name | MATHEMATICAL DOUBLE-STRUCK CAPITAL B |
| Block | [Mathematical Alphanumeric Symbols](https://unicodekit.com/block/mathematical-alphanumeric-symbols) |
| Script | Common |
| Category | Uppercase Letter (Lu) |
| Unicode version | 3.1 |
| HTML | `𝔹` `𝔹` |
| CSS | `\1D539` |
| JavaScript | `\u{1D539}` |
| UTF-8 | F0 9D 94 B9 |
| UTF-16 | D835 DD39 |
| Decomposition | font U+0042 |

## Related characters

- 𝔸 [U+1D538 MATHEMATICAL DOUBLE-STRUCK CAPITAL A](https://unicodekit.com/char/1D538)
- 𝔷 [U+1D537 MATHEMATICAL FRAKTUR SMALL Z](https://unicodekit.com/char/1D537)
- 𝔻 [U+1D53B MATHEMATICAL DOUBLE-STRUCK CAPITAL D](https://unicodekit.com/char/1D53B)
- 𝔶 [U+1D536 MATHEMATICAL FRAKTUR SMALL Y](https://unicodekit.com/char/1D536)
- 𝔼 [U+1D53C MATHEMATICAL DOUBLE-STRUCK CAPITAL E](https://unicodekit.com/char/1D53C)
- 𝔵 [U+1D535 MATHEMATICAL FRAKTUR SMALL X](https://unicodekit.com/char/1D535)
- 𝔽 [U+1D53D MATHEMATICAL DOUBLE-STRUCK CAPITAL F](https://unicodekit.com/char/1D53D)
- 𝔴 [U+1D534 MATHEMATICAL FRAKTUR SMALL W](https://unicodekit.com/char/1D534)
- 𝔾 [U+1D53E MATHEMATICAL DOUBLE-STRUCK CAPITAL G](https://unicodekit.com/char/1D53E)
- 𝔳 [U+1D533 MATHEMATICAL FRAKTUR SMALL V](https://unicodekit.com/char/1D533)
- 𝔲 [U+1D532 MATHEMATICAL FRAKTUR SMALL U](https://unicodekit.com/char/1D532)
- 𝕀 [U+1D540 MATHEMATICAL DOUBLE-STRUCK CAPITAL I](https://unicodekit.com/char/1D540)

Page: https://unicodekit.com/char/1D539 · JSON: https://unicodekit.com/characters/1D539