ΔE 11.1, fair: the same colour family, but not a straight swap. Faded P.R.U. Blue is a little lighter, more saturated than Dungeon Stone Grey.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Faded P.R.U. Blue is a little lighter, more saturated than Dungeon Stone Grey.
The same difference applies the other way round: Dungeon Stone Grey is a little darker, more muted.
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 Dungeon Stone Grey on the colour wheel See Faded P.R.U. Blue on the colour wheel
All matches: Dungeon Stone Grey equivalents · Faded P.R.U. Blue equivalents