ΔE 7.4, close: similar, with a visible difference side by side. Dark Yellow is more muted, warmer than Sand Grey.
Usually, if you are not matching paint already on the model. Close match (ΔE 7). Dark Yellow is more muted, warmer than Sand Grey.
The same difference applies the other way round: Sand Grey is more saturated, 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 Sand Grey on the colour wheel See Dark Yellow on the colour wheel
All matches: Sand Grey equivalents · Dark Yellow equivalents