ΔE 10.9, fair: the same colour family, but not a straight swap. Yellow Dune is a little lighter, warmer than Khaki.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Yellow Dune is a little lighter, warmer than Khaki.
The same difference applies the other way round: Khaki is a little darker, 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 Khaki on the colour wheel See Yellow Dune on the colour wheel
All matches: Khaki equivalents · Yellow Dune equivalents