| HTML Entity (dec) | □ |
| HTML Entity (hex) | □ |
| UTF-8 (hex) | 0xe296a1 / 0xe2 0x96 0xa1 (3 bytes) |
| UTF-8 (dec) | 226, 150, 161 (3 bytes) |
| UTF-16-BE (hex) | 0x25a1 / 0x25 0xa1 (2 bytes) |
| UTF-16-BE (dec) | 37, 161 (2 bytes) |
| UTF-32-BE (hex) | 0x25a1 / 0x00 0x00 0x25 0xa1 (4 bytes) |
| UTF-32-BE (dec) | 0, 0, 37, 161 (4 bytes) |
| C/C++/Java source code | "\u25a1" |
| Python source code | "\u25a1" |