ΔE 4.4, very close: most people won’t see a difference side by side. Naphthol Red Medium is a little lighter than Dragon Red. They are different kinds of paint: Army Painter Dragon Red is an opaque base/layer paint and Golden Naphthol Red Medium is an ink, glaze or transparent paint, so they won’t behave the same on the model even where the colour is close.
Yes, for most jobs. Very close match (ΔE 4). Naphthol Red Medium is a little lighter than Dragon Red. They are different kinds of paint.
The same difference applies the other way round: Dragon Red 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 Dragon Red on the colour wheel See Naphthol Red Medium on the colour wheel
All matches: Dragon Red equivalents · Naphthol Red Medium equivalents