ΔE 11.3, fair: the same colour family, but not a straight swap. Foul Green is noticeably lighter than Green Morkshroom.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Foul Green is noticeably lighter than Green Morkshroom.
The same difference applies the other way round: Green Morkshroom is noticeably darker.
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 Green Morkshroom on the colour wheel See Foul Green on the colour wheel
All matches: Green Morkshroom equivalents · Foul Green equivalents