Clear Smoke vs Thondia Brown

How close are they?

ΔE 9.8, close: similar, with a visible difference side by side. Thondia Brown is a little darker, more muted, warmer than Clear Smoke.

Can I use Thondia Brown instead of Clear Smoke?

Usually, if you are not matching paint already on the model. Close match (ΔE 10). Thondia Brown is a little darker, more muted, warmer than Clear Smoke.

Can I use Clear Smoke instead of Thondia Brown?

The same difference applies the other way round: Clear Smoke is a little lighter, more saturated, 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.