Turquoise vs Blue Green

How close are they?

ΔE 14.6, fair: the same colour family, but not a straight swap. Blue Green is noticeably darker, more muted than Turquoise.

Can I use Blue Green instead of Turquoise?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Blue Green is noticeably darker, more muted than Turquoise.

Can I use Turquoise instead of Blue Green?

The same difference applies the other way round: Turquoise is noticeably lighter, more saturated.

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.