ΔE 28.6, loose: different enough that you should pick on purpose. Mortarion Green Clear is noticeably darker, more muted, cooler than Disgusting Slime.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 29). Mortarion Green Clear is noticeably darker, more muted, cooler than Disgusting Slime.
The same difference applies the other way round: Disgusting Slime 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.
See Disgusting Slime on the colour wheel See Mortarion Green Clear on the colour wheel
All matches: Disgusting Slime equivalents · Mortarion Green Clear equivalents