ΔE 8.9, close: similar, with a visible difference side by side. Red Ecstasy is a little lighter than Evil Sunz Scarlet. They are different kinds of paint: Citadel Evil Sunz Scarlet is an opaque base/layer paint and Scale75 Red Ecstasy is a fluorescent or effect 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 9). Red Ecstasy is a little lighter than Evil Sunz Scarlet. They are different kinds of paint.
The same difference applies the other way round: Evil Sunz Scarlet is a little darker.
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 Evil Sunz Scarlet on the colour wheel See Red Ecstasy on the colour wheel
All matches: Evil Sunz Scarlet equivalents · Red Ecstasy equivalents