Aquatic Turquoise vs Park Green Flat

How close are they?

ΔE 6.7, close: similar, with a visible difference side by side. Park Green Flat is warmer than Aquatic Turquoise.

Can I use Park Green Flat instead of Aquatic Turquoise?

Usually, if you are not matching paint already on the model. Close match (ΔE 7). Park Green Flat is warmer than Aquatic Turquoise.

Can I use Aquatic Turquoise instead of Park Green Flat?

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