| HTML Entity (dec) | ▮ | 
| HTML Entity (hex) | ▮ | 
| UTF-8 (hex) | 0xe296ae / 0xe2 0x96 0xae (3 bytes) | 
| UTF-8 (dec) | 226, 150, 174 (3 bytes) | 
| UTF-16-BE (hex) | 0x25ae / 0x25 0xae (2 bytes) | 
| UTF-16-BE (dec) | 37, 174 (2 bytes) | 
| UTF-32-BE (hex) | 0x25ae / 0x00 0x00 0x25 0xae (4 bytes) | 
| UTF-32-BE (dec) | 0, 0, 37, 174 (4 bytes) | 
| C/C++/Java source code | "\u25ae" | 
| Python source code | "\u25ae" |