ΔE 17.2, loose: different enough that you should pick on purpose. Extra Dark Green is noticeably darker, cooler than Skavenblight Dinge.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 17). Extra Dark Green is noticeably darker, cooler than Skavenblight Dinge.
The same difference applies the other way round: Skavenblight Dinge is noticeably lighter, 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 Skavenblight Dinge on the colour wheel See Extra Dark Green on the colour wheel
All matches: Skavenblight Dinge equivalents · Extra Dark Green equivalents