ΔE 14.4, fair: the same colour family, but not a straight swap. Green Zinc Chrom. is a little darker, much more muted, warmer than Muddy Olive.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Green Zinc Chrom. is a little darker, much more muted, warmer than Muddy Olive.
The same difference applies the other way round: Muddy Olive is a little lighter, much 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 Muddy Olive on the colour wheel See Green Zinc Chrom. on the colour wheel
All matches: Muddy Olive equivalents · Green Zinc Chrom. equivalents