ΔE 4.9, very close: most people won’t see a difference side by side. Purple Glaze is warmer than Orc Blood. They are different kinds of paint: Army Painter Orc Blood is an opaque base/layer paint and Two Thin Coats Purple Glaze 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 5). Purple Glaze is warmer than Orc Blood. They are different kinds of paint.
The same difference applies the other way round: Orc Blood is cooler.
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 Orc Blood on the colour wheel See Purple Glaze on the colour wheel
All matches: Orc Blood equivalents · Purple Glaze equivalents