Code point
U+25E3
Glyph appearance depends on your fonts.
U+25E3
SoU+25E3 BLACK LOWER LEFT TRIANGLE is a Unicode 16.0.0 character in the Other Symbol category. It belongs to the Geometric Shapes block.
Choose the representation you need, then copy its value.
U+25E3
9699
◣
◣
E2 97 A3
25E3
000025E3
%E2%97%A3
\u25E3
\u25E3
\u25E3
\25E3