| HTML Entity (dec) | ☺ |
| HTML Entity (hex) | ☺ |
| UTF-8 (hex) | 0xe298ba / 0xe2 0x98 0xba (3 bytes) |
| UTF-8 (dec) | 226, 152, 186 (3 bytes) |
| UTF-16-BE (hex) | 0x263a / 0x26 0x3a (2 bytes) |
| UTF-16-BE (dec) | 38, 58 (2 bytes) |
| UTF-32-BE (hex) | 0x263a / 0x00 0x00 0x26 0x3a (4 bytes) |
| UTF-32-BE (dec) | 0, 0, 38, 58 (4 bytes) |
| C/C++/Java source code | "\u263a" |
| Python source code | "\u263a" |