Drab Green vs Cockpit Color Kawanishi

How close are they?

ΔE 8.7, close: similar, with a visible difference side by side. Cockpit Color Kawanishi is a little lighter than Drab Green.

Can I use Cockpit Color Kawanishi instead of Drab Green?

Usually, if you are not matching paint already on the model. Close match (ΔE 9). Cockpit Color Kawanishi is a little lighter than Drab Green.

Can I use Drab Green instead of Cockpit Color Kawanishi?

The same difference applies the other way round: Drab Green is a little darker.

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.