Heavy Black Heart
HTML Entity Browser Test:

U+2764 is the Unicode hex value of the character Heavy Black Heart, which is categorized as "other symbol" in the Unicode 6.0 character table.

Unicode Character Information
Unicode Hex U+2764
Character Name HEAVY BLACK HEART
General Category Other Symbol [Code: So]
Canonical Combining Class 0
Bidirectional Category ON
Mirrored N
Unicode Character Encodings
Heavy Black Heart HTML Entity ❤ (decimal entity), ❤ (hex entity)
Windows Key Code Alt 10084 or Alt +27641
Programming Source Code Encodings Python hex: u"\u2764", Hex for C++ and Java: "\u2764"
UTF-8 Hexadecimal Encoding 0xE29DA4
1 To type a Unicode symbol in Windows, hold down the ALT key and enter the decimal or hexadecimal code provided using the numeric keypad. The decimal alt code (Alt 10084) will only work on computers with support for this Unicode character in the active code page. The hexadecimal alt code (Alt +2764) will work for all Unicode characters provided Hex input from the numeric keypad is enabled.
* If the Heavy Black Heart character does not display correctly in your browser, you may not have a Unicode font on your system that supports this particular symbol.