ΔE 28.1, loose: different enough that you should pick on purpose. Imperial Gold is noticeably lighter, more muted, warmer than Bronze.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 28). Imperial Gold is noticeably lighter, more muted, warmer than Bronze.
The same difference applies the other way round: Bronze is noticeably darker, more saturated, 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 Bronze on the colour wheel See Imperial Gold on the colour wheel
All matches: Bronze equivalents · Imperial Gold equivalents