ΔE 15.3, loose: different enough that you should pick on purpose. Green Zinc Chrom. is a little lighter, cooler than Dark Green Brown.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 15). Green Zinc Chrom. is a little lighter, cooler than Dark Green Brown.
The same difference applies the other way round: Dark Green Brown is a little darker, 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 Dark Green Brown on the colour wheel See Green Zinc Chrom. on the colour wheel
All matches: Dark Green Brown equivalents · Green Zinc Chrom. equivalents