Code point
U+25D6
Glyph appearance depends on your fonts.
U+25D6
SoU+25D6 LEFT HALF BLACK CIRCLE 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+25D6
9686
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E2 97 96
25D6
000025D6
%E2%97%96
\u25D6
\u25D6
\u25D6
\25D6