ΔE 9.8, close: similar, with a visible difference side by side. US Desert Sand is more saturated than Pilgrim Grey.
Usually, if you are not matching paint already on the model. Close match (ΔE 10). US Desert Sand is more saturated than Pilgrim Grey.
The same difference applies the other way round: Pilgrim Grey is more muted.
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 Pilgrim Grey on the colour wheel See US Desert Sand on the colour wheel
All matches: Pilgrim Grey equivalents · US Desert Sand equivalents