ΔE 13.1, fair: the same colour family, but not a straight swap. Imperial Gold is a little darker, more saturated, warmer than White Gold.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Imperial Gold is a little darker, more saturated, warmer than White Gold.
The same difference applies the other way round: White Gold is a little lighter, more muted, cooler.
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 White Gold on the colour wheel See Imperial Gold on the colour wheel
All matches: White Gold equivalents · Imperial Gold equivalents