ΔE 9.7, close: similar, with a visible difference side by side. Red Oxide is a little lighter than Chaotic Red.
Usually, if you are not matching paint already on the model. Close match (ΔE 10). Red Oxide is a little lighter than Chaotic Red.
The same difference applies the other way round: Chaotic Red is a little darker.
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 Red Oxide on the colour wheel
All matches: Chaotic Red equivalents · Red Oxide equivalents