ΔE 9.6, close: similar, with a visible difference side by side. RLM 02 Gray is a little darker, more saturated, cooler than Dusty Skull.
Usually, if you are not matching paint already on the model. Close match (ΔE 10). RLM 02 Gray is a little darker, more saturated, cooler than Dusty Skull.
The same difference applies the other way round: Dusty Skull is a little lighter, more muted, warmer.
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 Skull on the colour wheel See RLM 02 Gray on the colour wheel
All matches: Dusty Skull equivalents · RLM 02 Gray equivalents