ΔE 6.0, close: similar, with a visible difference side by side. Desert Yellow is more muted than RAF Middle Stone.
Usually, if you are not matching paint already on the model. Close match (ΔE 6). Desert Yellow is more muted than RAF Middle Stone.
The same difference applies the other way round: RAF Middle Stone is 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 RAF Middle Stone on the colour wheel See Desert Yellow on the colour wheel
All matches: RAF Middle Stone equivalents · Desert Yellow equivalents