As character names:

U+2997 LEFT BLACK TORTOISE SHELL BRACKET 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 166, hex 0xA6, octal \246, binary 10100110
This is continuation byte 1, expecting 1 more.

Byte number 3 is decimal 151, hex 0x97, octal \227, binary 10010111
This is continuation byte 2, expecting 0 more.

U+2997	LEFT BLACK TORTOISE SHELL BRACKET
	x (mathematical left white tortoise shell bracket - 27EC)
	x (left tortoise shell bracket - 3014)
	x (left white tortoise shell bracket - 3018)