ΔE 14.7, fair: the same colour family, but not a straight swap. Disgusting Slime is a little darker, more muted, cooler than Pistachio.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Disgusting Slime is a little darker, more muted, cooler than Pistachio.
The same difference applies the other way round: Pistachio is a little 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.
See Pistachio on the colour wheel See Disgusting Slime on the colour wheel
All matches: Pistachio equivalents · Disgusting Slime equivalents