ΔE 11.9, fair: the same colour family, but not a straight swap. Mossy Green is noticeably lighter, cooler than Sky Green.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Mossy Green is noticeably lighter, cooler than Sky Green.
The same difference applies the other way round: Sky Green is noticeably 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 Sky Green on the colour wheel See Mossy Green on the colour wheel
All matches: Sky Green equivalents · Mossy Green equivalents