As character names:

U+25BE BLACK DOWN-POINTING SMALL 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 150, hex 0x96, octal \226, binary 10010110
This is continuation byte 1, expecting 1 more.

Byte number 3 is decimal 190, hex 0xBE, octal \276, binary 10111110
This is continuation byte 2, expecting 0 more.

U+25BE	BLACK DOWN-POINTING SMALL TRIANGLE
	x (down-pointing small red triangle - 1F53D)