As character names:

U+2571 BOX DRAWINGS LIGHT DIAGONAL UPPER RIGHT TO LOWER LEFT 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 149, hex 0x95, octal \225, binary 10010101
This is continuation byte 1, expecting 1 more.

Byte number 3 is decimal 177, hex 0xB1, octal \261, binary 10110001
This is continuation byte 2, expecting 0 more.

U+2571	BOX DRAWINGS LIGHT DIAGONAL UPPER RIGHT TO LOWER LEFT
	* not intended for mathematical symbol \diagup
	x (solidus - 002F)
	x (fraction slash - 2044)
	x (division slash - 2215)