As character names:

U+27E4 WHITE SQUARE WITH LEFTWARDS TICK 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 159, hex 0x9F, octal \237, binary 10011111
This is continuation byte 1, expecting 1 more.

Byte number 3 is decimal 164, hex 0xA4, octal \244, binary 10100100
This is continuation byte 2, expecting 0 more.

U+27E4	WHITE SQUARE WITH LEFTWARDS TICK
	= was always (modal operator)
	x (white square - 25A1)
	x (white medium square - 25FB)