ΔE 7.3, close: similar, with a visible difference side by side. Transparent Red Iron Oxide is more muted than Mythical Orange.
Usually, if you are not matching paint already on the model. Close match (ΔE 7). Transparent Red Iron Oxide is more muted than Mythical Orange.
The same difference applies the other way round: Mythical Orange is 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 Mythical Orange on the colour wheel See Transparent Red Iron Oxide on the colour wheel
All matches: Mythical Orange equivalents · Transparent Red Iron Oxide equivalents