As character names:

U+2B3D LEFTWARDS TWO-HEADED ARROW WITH TAIL WITH DOUBLE VERTICAL STROKE character (⬽)

As raw characters:

⬽

As a string of HTML entities:

⬽

Decoder output:

Byte number 1 is decimal 226, hex 0xE2, octal \342, binary 11100010
This is the first byte of a 3 byte sequence.

Byte number 2 is decimal 172, hex 0xAC, octal \254, binary 10101100
This is continuation byte 1, expecting 1 more.

Byte number 3 is decimal 189, hex 0xBD, octal \275, binary 10111101
This is continuation byte 2, expecting 0 more.

U+2B3D	LEFTWARDS TWO-HEADED ARROW WITH TAIL WITH DOUBLE VERTICAL STROKE
	x (rightwards two-headed arrow with tail with double vertical stroke - 2918)