ΔE 22.4, loose: different enough that you should pick on purpose. Imperial Gold is noticeably lighter, more muted than Gold.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 22). Imperial Gold is noticeably lighter, more muted than Gold.
The same difference applies the other way round: Gold is noticeably darker, more saturated.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Gold on the colour wheel See Imperial Gold on the colour wheel
All matches: Gold equivalents · Imperial Gold equivalents