ΔE 8.3, close: similar, with a visible difference side by side. Hull Red is a little darker, more saturated, cooler than Chaotic Red.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Hull Red is a little darker, more saturated, cooler than Chaotic Red.
The same difference applies the other way round: Chaotic Red is a little lighter, more muted, 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 Chaotic Red on the colour wheel See Hull Red on the colour wheel
All matches: Chaotic Red equivalents · Hull Red equivalents