ΔE 9.6, close: similar, with a visible difference side by side. Baal Crimson is a little lighter, cooler than Angron Red Clear.
Usually, if you are not matching paint already on the model. Close match (ΔE 10). Baal Crimson is a little lighter, cooler than Angron Red Clear.
The same difference applies the other way round: Angron Red Clear is a little darker, warmer.
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 Angron Red Clear on the colour wheel See Baal Crimson on the colour wheel
All matches: Angron Red Clear equivalents · Baal Crimson equivalents