Aquatic Turquoise vs Stegadon Scale Green

How close are they?

ΔE 9.2, close: similar, with a visible difference side by side. Stegadon Scale Green is more muted, cooler than Aquatic Turquoise.

Can I use Stegadon Scale Green instead of Aquatic Turquoise?

Usually, if you are not matching paint already on the model. Close match (ΔE 9). Stegadon Scale Green is more muted, cooler than Aquatic Turquoise.

Can I use Aquatic Turquoise instead of Stegadon Scale Green?

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