Cantabric Blue vs Light Turquoise

How close are they?

ΔE 11.9, fair: the same colour family, but not a straight swap. Light Turquoise is noticeably lighter, cooler than Cantabric Blue.

Can I use Light Turquoise instead of Cantabric Blue?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Light Turquoise is noticeably lighter, cooler than Cantabric Blue.

Can I use Cantabric Blue instead of Light Turquoise?

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