ΔE 9.1, close: similar, with a visible difference side by side. Canvas is more saturated, cooler than Brown 3606.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). Canvas is more saturated, cooler than Brown 3606.
The same difference applies the other way round: Brown 3606 is more muted, 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.
See Brown 3606 on the colour wheel See Canvas on the colour wheel
All matches: Brown 3606 equivalents · Canvas equivalents