Greatcoat Green vs Worn Olive

How close are they?

ΔE 8.0, close: similar, with a visible difference side by side. Worn Olive is a little darker, more saturated than Greatcoat Green.

Can I use Worn Olive instead of Greatcoat Green?

Usually, if you are not matching paint already on the model. Close match (ΔE 8). Worn Olive is a little darker, more saturated than Greatcoat Green.

Can I use Greatcoat Green instead of Worn Olive?

The same difference applies the other way round: Greatcoat Green is a little lighter, more muted.

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.