As character names:

U+0259 LATIN SMALL LETTER SCHWA character (ə)

As raw characters:

ə

As a string of HTML entities:

ə

Decoder output:

Byte number 1 is decimal 201, hex 0xC9, octal \311, binary 11001001
This is the first byte of a 2 byte sequence.

Byte number 2 is decimal 153, hex 0x99, octal \231, binary 10011001
This is continuation byte 1, expecting 0 more.

U+0259	LATIN SMALL LETTER SCHWA
	* mid-central unrounded vowel
	* uppercase is 018F
	* variant uppercase form 018E is associated with 01DD
	x (latin small letter turned e - 01DD)
	x (cyrillic small letter schwa - 04D9)