Code point
U+3389
Glyph appearance depends on your fonts.
U+3389
So<square> 006B 0063 0061 006CU+3389 SQUARE KCAL is a Unicode 16.0.0 character in the Other Symbol category. It belongs to the CJK Compatibility block.
Choose the representation you need, then copy its value.
U+3389
13193
㎉
㎉
E3 8E 89
3389
00003389
%E3%8E%89
\u3389
\u3389
\u3389
\3389