Mid Imperial Khaki vs Faded Green

How close are they?

ΔE 6.9, close: similar, with a visible difference side by side. Faded Green is a little lighter, cooler than Mid Imperial Khaki.

Can I use Faded Green instead of Mid Imperial Khaki?

Usually, if you are not matching paint already on the model. Close match (ΔE 7). Faded Green is a little lighter, cooler than Mid Imperial Khaki.

Can I use Mid Imperial Khaki instead of Faded Green?

The same difference applies the other way round: Mid Imperial Khaki is a little darker, 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.