U+1F18E "🆎" Negative Squared Ab Unicode Character
Unicode Version 17.0
🆎
U+1F18E "🆎" Negative Squared Ab is a single character used as an ideographic symbol to represent AB blood type, which is the rarest and a universal recipient blood type. It is part of the Enclosed Alphanumeric Supplement block and features the letters "A" and "B" enclosed within a square, often displayed with a negative (white on dark) background. This character is commonly incorporated into digital text and interface designs, such as in medical applications, blood donation information, or user interface icons, to concisely and visually represent the AB blood group without requiring separate letters or formatting.
General Properties
| Code Point | U+1F18E |
| Version Added | 6.0 |
| Name | Negative Squared Ab |
| Block | Enclosed Alphanumeric Supplement |
| General Category | Other Symbol |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
Encodings
| HTML Decimal Encoding | 🆎 |
| HTML Hex Encoding | 🆎 |
| UTF-8 Encoding | 0xF0 0x9F 0x86 0x8E |
| UTF-16 Encoding | 0xD83C 0xDD8E |
| UTF-32 Encoding | 0x0001F18E |
| C/C++/Java Escape | \ud83c\udd8e |