ΔE 8.3, close: similar, with a visible difference side by side. Desert Yellow is a little darker, warmer than Dark Yellow Sandy Yellow.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Desert Yellow is a little darker, warmer than Dark Yellow Sandy Yellow.
The same difference applies the other way round: Dark Yellow Sandy Yellow is a little lighter, 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 Dark Yellow Sandy Yellow on the colour wheel See Desert Yellow on the colour wheel
All matches: Dark Yellow Sandy Yellow equivalents · Desert Yellow equivalents