ΔE 14.7, fair: the same colour family, but not a straight swap. Green Zinc Chrom. is more muted, cooler than Olive Drab.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Green Zinc Chrom. is more muted, cooler than Olive Drab.
The same difference applies the other way round: Olive Drab is more saturated, warmer.
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 Olive Drab on the colour wheel See Green Zinc Chrom. on the colour wheel
All matches: Olive Drab equivalents · Green Zinc Chrom. equivalents