Mythical Orange vs Flaming Orange

How close are they?

ΔE 8.2, close: similar, with a visible difference side by side. Flaming Orange is a little lighter, more saturated than Mythical Orange.

Can I use Flaming Orange instead of Mythical Orange?

Usually, if you are not matching paint already on the model. Close match (ΔE 8). Flaming Orange is a little lighter, more saturated than Mythical Orange.

Can I use Mythical Orange instead of Flaming Orange?

The same difference applies the other way round: Mythical Orange is a little darker, 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.