Undefined Character (U+1F7FF)

Block:Geometric Shapes Extended, U+1F780 - U+1F7FF[1]
Plane:Supplementary Multilingual Plane, U+10000 - U+1FFFF[1]
HTML Entity:
  • 🟿
  • 🟿
UTF-8 Encoding:0xF0 0x9F 0x9F 0xBF
UTF-16 Encoding:0xD83D 0xDFFF
UTF-32 Encoding:0x0001F7FF

References