As character names:

U+2B55 HEAVY LARGE CIRCLE character (⭕)

As raw characters:

⭕

As a string of HTML entities:

⭕

Decoder output:

Byte number 1 is decimal 226, hex 0xE2, octal \342, binary 11100010
This is the first byte of a 3 byte sequence.

Byte number 2 is decimal 173, hex 0xAD, octal \255, binary 10101101
This is continuation byte 1, expecting 1 more.

Byte number 3 is decimal 149, hex 0x95, octal \225, binary 10010101
This is continuation byte 2, expecting 0 more.

U+2B55	HEAVY LARGE CIRCLE
	= basic symbol for speed limit
	* forms a game tally pair with 274C
	x (large circle - 25EF)