ΔE 10.2, fair: the same colour family, but not a straight swap. Red Glaze is more saturated, warmer than Raging Rouge. They are different kinds of paint: Army Painter Raging Rouge is an opaque base/layer paint and Two Thin Coats Red Glaze 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 10). Red Glaze is more saturated, warmer than Raging Rouge. They are different kinds of paint.
The same difference applies the other way round: Raging Rouge is more muted, 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 Raging Rouge on the colour wheel See Red Glaze on the colour wheel
All matches: Raging Rouge equivalents · Red Glaze equivalents