ΔE 7.8, close: similar, with a visible difference side by side. IJA Light Grey Green is more muted than Mid Imperial Khaki.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). IJA Light Grey Green is more muted than Mid Imperial Khaki.
The same difference applies the other way round: Mid Imperial Khaki 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 Mid Imperial Khaki on the colour wheel See IJA Light Grey Green on the colour wheel
All matches: Mid Imperial Khaki equivalents · IJA Light Grey Green equivalents