ΔE 12.4, fair: the same colour family, but not a straight swap. Dark Umber is a little darker, more saturated, warmer than Skavenblight Dinge.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Dark Umber is a little darker, more saturated, warmer than Skavenblight Dinge.
The same difference applies the other way round: Skavenblight Dinge is a little lighter, more muted, cooler.
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 Skavenblight Dinge on the colour wheel See Dark Umber on the colour wheel
All matches: Skavenblight Dinge equivalents · Dark Umber equivalents