As character names:

U+25E4 BLACK UPPER LEFT TRIANGLE 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 151, hex 0x97, octal \227, binary 10010111
This is continuation byte 1, expecting 1 more.

Byte number 3 is decimal 164, hex 0xA4, octal \244, binary 10100100
This is continuation byte 2, expecting 0 more.

U+25E4	BLACK UPPER LEFT TRIANGLE
	x (upper left triangular medium shade - 1FB9C)