Code point
U+2599
Glyph appearance depends on your fonts.
U+2599
SoU+2599 QUADRANT UPPER LEFT AND LOWER LEFT AND LOWER RIGHT is a Unicode 16.0.0 character in the Other Symbol category. It belongs to the Block Elements block.
Choose the representation you need, then copy its value.
U+2599
9625
▙
▙
E2 96 99
2599
00002599
%E2%96%99
\u2599
\u2599
\u2599
\2599