Code point
U+2B1C
Glyph appearance depends on your fonts.
U+2B1C
SoU+2B1C WHITE LARGE SQUARE is a Unicode 16.0.0 character in the Other Symbol category. It belongs to the Miscellaneous Symbols and Arrows block.
Choose the representation you need, then copy its value.
U+2B1C
11036
⬜
⬜
E2 AC 9C
2B1C
00002B1C
%E2%AC%9C
\u2B1C
\u2B1C
\u2B1C
\2B1C