As character names:

U+02D0 MODIFIER LETTER TRIANGULAR COLON character (ː)

As raw characters:

ː

As a string of HTML entities:

ː

Decoder output:

Byte number 1 is decimal 203, hex 0xCB, octal \313, binary 11001011
This is the first byte of a 2 byte sequence.

Byte number 2 is decimal 144, hex 0x90, octal \220, binary 10010000
This is continuation byte 1, expecting 0 more.

U+02D0	MODIFIER LETTER TRIANGULAR COLON
	* length mark
	x (colon - 003A)