Brown Tone vs Blackened Brown

How close are they?

ΔE 10.0, close: similar, with a visible difference side by side. Blackened Brown is cooler than Brown Tone. They are different kinds of paint: Army Painter Brown Tone is a wash/shade and Reaper Blackened Brown is an opaque base/layer paint, so they won’t behave the same on the model even where the colour is close.

Can I use Blackened Brown instead of Brown Tone?

Usually, if you are not matching paint already on the model. Close match (ΔE 10). Blackened Brown is cooler than Brown Tone. They are different kinds of paint.

Can I use Brown Tone instead of Blackened Brown?

The same difference applies the other way round: Brown Tone is 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.