Caribbean Blue vs Foul Green

How close are they?

ΔE 11.3, fair: the same colour family, but not a straight swap. Foul Green is more saturated, warmer than Caribbean Blue.

Can I use Foul Green instead of Caribbean Blue?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Foul Green is more saturated, warmer than Caribbean Blue.

Can I use Caribbean Blue instead of Foul Green?

The same difference applies the other way round: Caribbean Blue 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.