ΔE 10.1, fair: the same colour family, but not a straight swap. Deck Grey is more muted, cooler than Centaur Skin.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 10). Deck Grey is more muted, cooler than Centaur Skin.
The same difference applies the other way round: Centaur Skin is more saturated, 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 Centaur Skin on the colour wheel See Deck Grey on the colour wheel
All matches: Centaur Skin equivalents · Deck Grey equivalents