ΔE 6.5, close: similar, with a visible difference side by side. Seraphim Sepia is more muted than Summer Soil. They are different kinds of paint: AMMO by Mig Summer Soil is an opaque base/layer paint and Citadel Seraphim Sepia is a wash/shade, so they won’t behave the same on the model even where the colour is close.
Usually, if you are not matching paint already on the model. Close match (ΔE 7). Seraphim Sepia is more muted than Summer Soil. They are different kinds of paint.
The same difference applies the other way round: Summer Soil is more saturated.
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 Summer Soil on the colour wheel See Seraphim Sepia on the colour wheel
All matches: Summer Soil equivalents · Seraphim Sepia equivalents