Gorthor Brown vs Dark Mud

How close are they?

ΔE 13.7, fair: the same colour family, but not a straight swap. Dark Mud is noticeably darker, more muted, cooler than Gorthor Brown.

Can I use Dark Mud instead of Gorthor Brown?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Dark Mud is noticeably darker, more muted, cooler than Gorthor Brown.

Can I use Gorthor Brown instead of Dark Mud?

The same difference applies the other way round: Gorthor Brown is noticeably lighter, 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.