ΔE 4.3, very close: most people won’t see a difference side by side. Olive Green RLM80 is a little lighter, warmer than Viridian Grim.
Yes, for most jobs. Very close match (ΔE 4). Olive Green RLM80 is a little lighter, warmer than Viridian Grim.
The same difference applies the other way round: Viridian Grim is a little 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 Viridian Grim on the colour wheel See Olive Green RLM80 on the colour wheel
All matches: Viridian Grim equivalents · Olive Green RLM80 equivalents