Forest Green (FS34079) vs Olive Grey

How close are they?

ΔE 10.6, fair: the same colour family, but not a straight swap. Olive Grey is a little lighter, more muted, warmer than Forest Green (FS34079).

Can I use Olive Grey instead of Forest Green (FS34079)?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Olive Grey is a little lighter, more muted, warmer than Forest Green (FS34079).

Can I use Forest Green (FS34079) instead of Olive Grey?

The same difference applies the other way round: Forest Green (FS34079) 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.