ΔE 4.1, very close: most people won’t see a difference side by side. Inktense Crimson is a little darker than Red Tone. They are different kinds of paint: Army Painter Red Tone is a wash/shade 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.
Yes, for most jobs. Very close match (ΔE 4). Inktense Crimson is a little darker than Red Tone. They are different kinds of paint.
The same difference applies the other way round: Red Tone is a little lighter.
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 Red Tone on the colour wheel See Inktense Crimson on the colour wheel
All matches: Red Tone equivalents · Inktense Crimson equivalents