Temple Guard Blue vs Dark Turquoise

How close are they?

ΔE 7.8, close: similar, with a visible difference side by side. Dark Turquoise is a little darker, warmer than Temple Guard Blue.

Can I use Dark Turquoise instead of Temple Guard Blue?

Usually, if you are not matching paint already on the model. Close match (ΔE 8). Dark Turquoise is a little darker, warmer than Temple Guard Blue.

Can I use Temple Guard Blue instead of Dark Turquoise?

The same difference applies the other way round: Temple Guard Blue is a little lighter, 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.