As character names:

U+30E3 KATAKANA LETTER SMALL YA character (ャ)

As raw characters:

ャ

As a string of HTML entities:

ャ

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 131, hex 0x83, octal \203, binary 10000011
This is continuation byte 1, expecting 1 more.

Byte number 3 is decimal 163, hex 0xA3, octal \243, binary 10100011
This is continuation byte 2, expecting 0 more.

U+30E3	KATAKANA LETTER SMALL YA