ΔE 8.9, close: similar, with a visible difference side by side. Arrakis Brown is a little darker, more muted than Averland Sunset.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). Arrakis Brown is a little darker, more muted than Averland Sunset.
The same difference applies the other way round: Averland Sunset is a little lighter, more saturated.
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 Averland Sunset on the colour wheel See Arrakis Brown on the colour wheel
All matches: Averland Sunset equivalents · Arrakis Brown equivalents