Troglodyte Blue vs Sentient Turquoise

How close are they?

ΔE 6.5, close: similar, with a visible difference side by side. Sentient Turquoise is more muted than Troglodyte Blue.

Can I use Sentient Turquoise instead of Troglodyte Blue?

Usually, if you are not matching paint already on the model. Close match (ΔE 6). Sentient Turquoise is more muted than Troglodyte Blue.

Can I use Troglodyte Blue instead of Sentient Turquoise?

The same difference applies the other way round: Troglodyte Blue is 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.