ΔE 8.1, close: similar, with a visible difference side by side. US Desert Sand is more muted, warmer than Bard Skin.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). US Desert Sand is more muted, warmer than Bard Skin.
The same difference applies the other way round: Bard Skin 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 Bard Skin on the colour wheel See US Desert Sand on the colour wheel
All matches: Bard Skin equivalents · US Desert Sand equivalents