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