ΔE 8.6, close: similar, with a visible difference side by side. Camo Cloak is more muted than Olive Green. They are different kinds of paint: AMMO by Mig Olive Green is an opaque base/layer paint and Army Painter Camo Cloak is a one-coat contrast-style paint, so they won’t behave the same on the model even where the colour is close.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). Camo Cloak is more muted than Olive Green. They are different kinds of paint.
The same difference applies the other way round: Olive Green is more saturated.
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 Olive Green on the colour wheel See Camo Cloak on the colour wheel
All matches: Olive Green equivalents · Camo Cloak equivalents