ΔE 9.0, close: similar, with a visible difference side by side. Canvas is a little lighter, cooler than Sepia.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). Canvas is a little lighter, cooler than Sepia.
The same difference applies the other way round: Sepia is a little darker, 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 Sepia on the colour wheel See Canvas on the colour wheel
All matches: Sepia equivalents · Canvas equivalents