ΔE 10.0, fair: the same colour family, but not a straight swap. IDF Gray 3 Modern is a little darker, cooler than Dusty Skull.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 10). IDF Gray 3 Modern is a little darker, cooler than Dusty Skull.
The same difference applies the other way round: Dusty Skull is a little lighter, 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 IDF Gray 3 Modern on the colour wheel
All matches: Dusty Skull equivalents · IDF Gray 3 Modern equivalents