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