ΔE 19.0, loose: different enough that you should pick on purpose. Transparent Naphthol Red Light is noticeably lighter, much more saturated than Evil Sunz Scarlet. They are different kinds of paint: Citadel Evil Sunz Scarlet is an opaque base/layer paint and Golden Transparent Naphthol Red Light is an ink, glaze or transparent paint, so they won’t behave the same on the model even where the colour is close.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 19). Transparent Naphthol Red Light is noticeably lighter, much more saturated than Evil Sunz Scarlet. They are different kinds of paint.
The same difference applies the other way round: Evil Sunz Scarlet is noticeably darker, much more muted.
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 Transparent Naphthol Red Light on the colour wheel
All matches: Evil Sunz Scarlet equivalents · Transparent Naphthol Red Light equivalents