Code point
U+2102
Glyph appearance depends on your fonts.
U+2102
Lu<font> 0043U+2102 DOUBLE-STRUCK CAPITAL C is a Unicode 16.0.0 character in the Uppercase Letter category. It belongs to the Letterlike Symbols block.
Choose the representation you need, then copy its value.
U+2102
8450
ℂ
ℂ
ℂ
E2 84 82
2102
00002102
%E2%84%82
\u2102
\u2102
\u2102
\2102