ΔE 4.6, very close: most people won’t see a difference side by side. Olive Green is a little darker, cooler than A-19f Grass Green.
Yes, for most jobs. Very close match (ΔE 5). Olive Green is a little darker, cooler than A-19f Grass Green.
The same difference applies the other way round: A-19f Grass Green is a little lighter, 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 A-19f Grass Green on the colour wheel See Olive Green on the colour wheel
All matches: A-19f Grass Green equivalents · Olive Green equivalents