ΔE 15.7, loose: different enough that you should pick on purpose. Alizarin Crimson Hue is a little lighter, much more saturated, warmer than Chimera Red.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Alizarin Crimson Hue is a little lighter, much more saturated, warmer than Chimera Red.
The same difference applies the other way round: Chimera Red is a little darker, much 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 Chimera Red on the colour wheel See Alizarin Crimson Hue on the colour wheel
All matches: Chimera Red equivalents · Alizarin Crimson Hue equivalents