ΔE 11.8, fair: the same colour family, but not a straight swap. Bronze Green is noticeably lighter, warmer than Black Green.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Bronze Green is noticeably lighter, warmer than Black Green.
The same difference applies the other way round: Black Green is noticeably darker, 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 Black Green on the colour wheel See Bronze Green on the colour wheel
All matches: Black Green equivalents · Bronze Green equivalents