ΔE 10.8, fair: the same colour family, but not a straight swap. Snakebite Leather is warmer than Summer Soil. They are different kinds of paint: AMMO by Mig Summer Soil is an opaque base/layer paint and Citadel Snakebite Leather is a one-coat contrast-style paint, so they won’t behave the same on the model even where the colour is close.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Snakebite Leather is warmer than Summer Soil. They are different kinds of paint.
The same difference applies the other way round: Summer Soil is 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.
See Summer Soil on the colour wheel See Snakebite Leather on the colour wheel
All matches: Summer Soil equivalents · Snakebite Leather equivalents