ΔE 32.3, loose: different enough that you should pick on purpose. Imperial Yellow is a little lighter, much more saturated, warmer than Bronze Yellow.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 32). Imperial Yellow is a little lighter, much more saturated, warmer than Bronze Yellow.
The same difference applies the other way round: Bronze Yellow is a little darker, much 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 Bronze Yellow on the colour wheel See Imperial Yellow on the colour wheel
All matches: Bronze Yellow equivalents · Imperial Yellow equivalents