Code point
U+27E6
Glyph appearance depends on your fonts.
U+27E6
PsU+27E6 MATHEMATICAL LEFT WHITE SQUARE BRACKET is a Unicode 16.0.0 character in the Open Punctuation category. It belongs to the Miscellaneous Mathematical Symbols-A block.
Choose the representation you need, then copy its value.
U+27E6
10214
⟦
⟦
⟦
E2 9F A6
27E6
000027E6
%E2%9F%A6
\u27E6
\u27E6
\u27E6
\27E6