ΔE 10.9, fair: the same colour family, but not a straight swap. Inktense Blue is a little darker, more muted than Beowulf Blue. They are different kinds of paint: Army Painter Beowulf Blue is a one-coat contrast-style paint and Scale75 Inktense Blue is an ink, glaze or transparent paint, so they won’t behave the same on the model even where the colour is close.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Inktense Blue is a little darker, more muted than Beowulf Blue. They are different kinds of paint.
The same difference applies the other way round: Beowulf Blue 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 Beowulf Blue on the colour wheel See Inktense Blue on the colour wheel
All matches: Beowulf Blue equivalents · Inktense Blue equivalents