As character names:

U+1E5F LATIN SMALL LETTER R WITH LINE BELOW character (ṟ)

As raw characters:

ṟ

As a string of HTML entities:

ṟ

Decoder output:

Byte number 1 is decimal 225, hex 0xE1, octal \341, binary 11100001
This is the first byte of a 3 byte sequence.

Byte number 2 is decimal 185, hex 0xB9, octal \271, binary 10111001
This is continuation byte 1, expecting 1 more.

Byte number 3 is decimal 159, hex 0x9F, octal \237, binary 10011111
This is continuation byte 2, expecting 0 more.

U+1E5F	LATIN SMALL LETTER R WITH LINE BELOW
	* Indic transliteration
	: 0072 0331