ΔE 7.0, close: similar, with a visible difference side by side. US Desert Arm. is a little darker than Dusty Earth.
Usually, if you are not matching paint already on the model. Close match (ΔE 7). US Desert Arm. is a little darker than Dusty Earth.
The same difference applies the other way round: Dusty Earth is a little lighter.
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 Dusty Earth on the colour wheel See US Desert Arm. on the colour wheel
All matches: Dusty Earth equivalents · US Desert Arm. equivalents