ΔE 19.5, loose: different enough that you should pick on purpose. Pale Green is a little lighter, cooler than Gobi Brown.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 20). Pale Green is a little lighter, cooler than Gobi Brown.
The same difference applies the other way round: Gobi Brown is a little darker, 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 Gobi Brown on the colour wheel See Pale Green on the colour wheel
All matches: Gobi Brown equivalents · Pale Green equivalents