Code point
U+1D584
Glyph appearance depends on your fonts.
U+1D584
Lu<font> 0059U+1D584 MATHEMATICAL BOLD FRAKTUR 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+1D584
120196
𝖄
𝖄
F0 9D 96 84
D835 DD84
0001D584
%F0%9D%96%84
\U0001D584
\u{1D584}
\uD835\uDD84
\1D584