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