ΔE 18.9, loose: different enough that you should pick on purpose. Chromium Oxide Green is noticeably darker, more saturated than Nurgling Green.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 19). Chromium Oxide Green is noticeably darker, more saturated than Nurgling Green.
The same difference applies the other way round: Nurgling Green is noticeably lighter, more muted.
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 Nurgling Green on the colour wheel See Chromium Oxide Green on the colour wheel
All matches: Nurgling Green equivalents · Chromium Oxide Green equivalents