ΔE 9.6, close: similar, with a visible difference side by side. Gengis Khaki is a little lighter, more saturated, cooler than Typhus Corrosion. They are different kinds of paint: Citadel Typhus Corrosion is a technical paint or medium and Green Stuff World Gengis Khaki is an opaque base/layer paint, 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 10). Gengis Khaki is a little lighter, more saturated, cooler than Typhus Corrosion. They are different kinds of paint.
The same difference applies the other way round: Typhus Corrosion is a little darker, 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 Typhus Corrosion on the colour wheel See Gengis Khaki on the colour wheel
All matches: Typhus Corrosion equivalents · Gengis Khaki equivalents