| HTML Entity (dec) | ⬡ |
| HTML Entity (hex) | ⬡ |
| UTF-8 (hex) | 0xe2aca1 / 0xe2 0xac 0xa1 (3 bytes) |
| UTF-8 (dec) | 226, 172, 161 (3 bytes) |
| UTF-16-BE (hex) | 0x2b21 / 0x2b 0x21 (2 bytes) |
| UTF-16-BE (dec) | 43, 33 (2 bytes) |
| UTF-32-BE (hex) | 0x2b21 / 0x00 0x00 0x2b 0x21 (4 bytes) |
| UTF-32-BE (dec) | 0, 0, 43, 33 (4 bytes) |
| C/C++/Java source code | "\u2b21" |
| Python source code | "\u2b21" |