Code point
U+2750
Glyph appearance depends on your fonts.
U+2750
SoU+2750 UPPER RIGHT DROP-SHADOWED WHITE SQUARE is a Unicode 16.0.0 character in the Other Symbol category. It belongs to the Dingbats block.
Choose the representation you need, then copy its value.
U+2750
10064
❐
❐
E2 9D 90
2750
00002750
%E2%9D%90
\u2750
\u2750
\u2750
\2750