A red square with a big white letter A in the middle. Often used as an indication of blood type.
| Category | โ Symbols |
| Subgroup | Alphanum |
| Codepoints | 1F170 FE0F |
| Shortcode | :a: |
| HTML hex | 🅰️ |
| HTML dec | 🅰️ |
| URL escape code | %F0%9F%85%B0%EF%B8%8F |
| Punycode | xn--037h |
| Bytes (UTF-8) | F0 9F 85 B0 EF B8 8F |
| JavaScript, JSON, Java | \uD83C\uDD70\uFE0F |
| C, C++, Python | \U0001f170\uFE0F |
| CSS | \01F170 \FE0F |
| PHP, Ruby | \u{1F170}\u{FE0F} |
| Perl | \x{1F170}\x{FE0F} |
Popular Emojis