Dusty Skull vs Underhive Ash

How close are they?

ΔE 13.3, fair: the same colour family, but not a straight swap. Underhive Ash is noticeably lighter, cooler than Dusty Skull.

Can I use Underhive Ash instead of Dusty Skull?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Underhive Ash is noticeably lighter, cooler than Dusty Skull.

Can I use Dusty Skull instead of Underhive Ash?

The same difference applies the other way round: Dusty Skull is noticeably darker, 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.