ΔE 15.0, loose: different enough that you should pick on purpose. US Desert Sand is a little lighter, more saturated than Ravenskill.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 15). US Desert Sand is a little lighter, more saturated than Ravenskill.
The same difference applies the other way round: Ravenskill is a little darker, 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 Ravenskill on the colour wheel See US Desert Sand on the colour wheel
All matches: Ravenskill equivalents · US Desert Sand equivalents