Square With Upper Left Diagonal Half Black symbol

U+25E9

Official name
SQUARE WITH UPPER LEFT DIAGONAL HALF BLACK
Unicode block
Geometric Shapes
Added in
Unicode 1.1
HTML
HTML hex
CSS content
JavaScript
UTF-8 bytes
E2 97 A9
Keywords
geometry, geometric
Categories
Shapes

The Unicode standard defines this character, but your device’s fonts decide how it looks, so it may differ on other screens.

Data: Unicode 16.0, Emoji 16.0.