Hazardous Smog vs Tropical Turquoise

How close are they?

ΔE 8.0, close: similar, with a visible difference side by side. Tropical Turquoise is a little darker, cooler than Hazardous Smog.

Can I use Tropical Turquoise instead of Hazardous Smog?

Usually, if you are not matching paint already on the model. Close match (ΔE 8). Tropical Turquoise is a little darker, cooler than Hazardous Smog.

Can I use Hazardous Smog instead of Tropical Turquoise?

The same difference applies the other way round: Hazardous Smog is a little lighter, 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.