ΔE 7.9, close: similar, with a visible difference side by side. Sylvaneth Bark is a little darker, more muted, warmer than Desert Sand.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Sylvaneth Bark is a little darker, more muted, warmer than Desert Sand.
The same difference applies the other way round: Desert Sand is a little lighter, 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 Desert Sand on the colour wheel See Sylvaneth Bark on the colour wheel
All matches: Desert Sand equivalents · Sylvaneth Bark equivalents