As character names:

U+0233 LATIN SMALL LETTER Y WITH MACRON character (ȳ)

As raw characters:

ȳ

As a string of HTML entities:

ȳ

Decoder output:

Byte number 1 is decimal 200, hex 0xC8, octal \310, binary 11001000
This is the first byte of a 2 byte sequence.

Byte number 2 is decimal 179, hex 0xB3, octal \263, binary 10110011
This is continuation byte 1, expecting 0 more.

U+0233	LATIN SMALL LETTER Y WITH MACRON
	* also Cornish
	: 0079 0304