ΔE 9.1, close: similar, with a visible difference side by side. Parasite Brown is a little darker, more muted than Flaming Forge Orange.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). Parasite Brown is a little darker, more muted than Flaming Forge Orange.
The same difference applies the other way round: Flaming Forge Orange is a little lighter, more saturated.
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 Flaming Forge Orange on the colour wheel See Parasite Brown on the colour wheel
All matches: Flaming Forge Orange equivalents · Parasite Brown equivalents