U+2B06, ⬆
UPWARDS BLACK ARROW

[U+2B05]
Miscellaneous Symbols and Arrows
[U+2B07]
Presentations of ⬆︎
Text
style
Emoji
style
⬆︎ ⬆️
Note: Character's appearance
may be different on each system.
Text style is forced with ︎
and emoji style with ️

Emoji