As character names:

U+1EC4 LATIN CAPITAL LETTER E WITH CIRCUMFLEX AND TILDE character (Ễ)

As raw characters:

Ễ

As a string of HTML entities:

Ễ

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 187, hex 0xBB, octal \273, binary 10111011
This is continuation byte 1, expecting 1 more.

Byte number 3 is decimal 132, hex 0x84, octal \204, binary 10000100
This is continuation byte 2, expecting 0 more.

U+1EC4	LATIN CAPITAL LETTER E WITH CIRCUMFLEX AND TILDE
	: 00CA 0303