ΔE 8.7, close: similar, with a visible difference side by side. Inktense Crimson is a little darker, more muted than Resplendent Red. They are different kinds of paint: Army Painter Resplendent Red is an opaque base/layer paint and Scale75 Inktense Crimson is an ink, glaze or transparent 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). Inktense Crimson is a little darker, more muted than Resplendent Red. They are different kinds of paint.
The same difference applies the other way round: Resplendent Red is a little lighter, more saturated.
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 Resplendent Red on the colour wheel See Inktense Crimson on the colour wheel
All matches: Resplendent Red equivalents · Inktense Crimson equivalents