Code point
U+1D4B4
Glyph appearance depends on your fonts.
U+1D4B4
Lu<font> 0059U+1D4B4 MATHEMATICAL SCRIPT CAPITAL Y is a Unicode 16.0.0 character in the Uppercase Letter category. It belongs to the Mathematical Alphanumeric Symbols block.
Choose the representation you need, then copy its value.
U+1D4B4
119988
𝒴
𝒴
𝒴
F0 9D 92 B4
D835 DCB4
0001D4B4
%F0%9D%92%B4
\U0001D4B4
\u{1D4B4}
\uD835\uDCB4
\1D4B4