ΔE 13.3, fair: the same colour family, but not a straight swap. Mid Imperial Khaki is a little lighter, more muted, warmer than Mecha Light Green.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Mid Imperial Khaki is a little lighter, more muted, warmer than Mecha Light Green.
The same difference applies the other way round: Mecha Light Green is a little darker, more saturated, cooler.
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 Mecha Light Green on the colour wheel See Mid Imperial Khaki on the colour wheel
All matches: Mecha Light Green equivalents · Mid Imperial Khaki equivalents