ΔE 10.3, fair: the same colour family, but not a straight swap. Bronze Brown is a little darker, warmer than Petroleum Brown.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 10). Bronze Brown is a little darker, warmer than Petroleum Brown.
The same difference applies the other way round: Petroleum Brown is a little lighter, 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 Petroleum Brown on the colour wheel See Bronze Brown on the colour wheel
All matches: Petroleum Brown equivalents · Bronze Brown equivalents