ΔE 13.1, fair: the same colour family, but not a straight swap. IJA Light Grey Green is a little lighter, cooler than Khaki Shadow.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). IJA Light Grey Green is a little lighter, cooler than Khaki Shadow.
The same difference applies the other way round: Khaki Shadow 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.
See Khaki Shadow on the colour wheel See IJA Light Grey Green on the colour wheel
All matches: Khaki Shadow equivalents · IJA Light Grey Green equivalents