ΔE 9.0, close: similar, with a visible difference side by side. Khaki is a little lighter, more muted than Desert Yellow.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). Khaki is a little lighter, more muted than Desert Yellow.
The same difference applies the other way round: Desert Yellow is a little darker, 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 Desert Yellow on the colour wheel See Khaki on the colour wheel
All matches: Desert Yellow equivalents · Khaki equivalents