ΔE 13.9, fair: the same colour family, but not a straight swap. Ghost Green is more muted, warmer than Cloud Blue.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Ghost Green is more muted, warmer than Cloud Blue.
The same difference applies the other way round: Cloud Blue is more saturated, cooler.
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 Cloud Blue on the colour wheel See Ghost Green on the colour wheel
All matches: Cloud Blue equivalents · Ghost Green equivalents