As character names:

U+28D8 BRAILLE PATTERN DOTS-4578 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 163, hex 0xA3, octal \243, binary 10100011
This is continuation byte 1, expecting 1 more.

Byte number 3 is decimal 152, hex 0x98, octal \230, binary 10011000
This is continuation byte 2, expecting 0 more.

U+28D8	BRAILLE PATTERN DOTS-4578