As character names:

U+301B RIGHT WHITE SQUARE BRACKET character (〛)

As raw characters:

〛

As a string of HTML entities:

〛

Decoder output:

Byte number 1 is decimal 227, hex 0xE3, octal \343, binary 11100011
This is the first byte of a 3 byte sequence.

Byte number 2 is decimal 128, hex 0x80, octal \200, binary 10000000
This is continuation byte 1, expecting 1 more.

Byte number 3 is decimal 155, hex 0x9B, octal \233, binary 10011011
This is continuation byte 2, expecting 0 more.

U+301B	RIGHT WHITE SQUARE BRACKET
	= right abstract syntax bracket
	x (mathematical right white square bracket - 27E7)