ΔE 6.6, close: similar, with a visible difference side by side. Our swatches for the two are almost the same. They are different kinds of paint: Army Painter Dragon Red is an opaque base/layer paint and Citadel Blood Angels Red is a one-coat contrast-style paint, so they won’t behave the same on the model even where the colour is close.
✓ Herrick Games paint comparison chart lists these two as equivalents.
Usually, if you are not matching paint already on the model. Close match (ΔE 7). The swatches are almost the same. They are different kinds of paint.
The same difference applies the other way round.
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 Dragon Red on the colour wheel See Blood Angels Red on the colour wheel
All matches: Dragon Red equivalents · Blood Angels Red equivalents