ΔE 10.7, fair: the same colour family, but not a straight swap. Terran Khaki is noticeably lighter, cooler than Light Battle Dress.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Terran Khaki is noticeably lighter, cooler than Light Battle Dress.
The same difference applies the other way round: Light Battle Dress is noticeably 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 Light Battle Dress on the colour wheel See Terran Khaki on the colour wheel
All matches: Light Battle Dress equivalents · Terran Khaki equivalents