ΔE 9.4, close: similar, with a visible difference side by side. Evil Eye Red is more saturated, cooler than Viper Brown.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). Evil Eye Red is more saturated, cooler than Viper Brown.
The same difference applies the other way round: Viper Brown 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 Viper Brown on the colour wheel See Evil Eye Red on the colour wheel
All matches: Viper Brown equivalents · Evil Eye Red equivalents