ΔE 9.7, close: similar, with a visible difference side by side. Quinacridone Burnt Orange is a little darker, more saturated than Knight-Questor Flesh.
Usually, if you are not matching paint already on the model. Close match (ΔE 10). Quinacridone Burnt Orange is a little darker, more saturated than Knight-Questor Flesh.
The same difference applies the other way round: Knight-Questor Flesh 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 Knight-Questor Flesh on the colour wheel See Quinacridone Burnt Orange on the colour wheel
All matches: Knight-Questor Flesh equivalents · Quinacridone Burnt Orange equivalents