ΔE 11.4, fair: the same colour family, but not a straight swap. German Uniform is a little lighter, more muted, warmer than Arachnid Green.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). German Uniform is a little lighter, more muted, warmer than Arachnid Green.
The same difference applies the other way round: Arachnid Green is a little darker, 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 Arachnid Green on the colour wheel See German Uniform on the colour wheel
All matches: Arachnid Green equivalents · German Uniform equivalents