Code point
U+2BC4
Glyph appearance depends on your fonts.
U+2BC4
SoU+2BC4 BLACK OCTAGON 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+2BC4
11204
⯄
⯄
E2 AF 84
2BC4
00002BC4
%E2%AF%84
\u2BC4
\u2BC4
\u2BC4
\2BC4