ΔE 10.0, fair: the same colour family, but not a straight swap. Fire Drake is a little darker, more muted than Warm Orange. They are different kinds of paint: AK Interactive Warm Orange is an opaque base/layer paint and Army Painter Fire Drake is a one-coat contrast-style paint, so they won’t behave the same on the model even where the colour is close.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 10). Fire Drake is a little darker, more muted than Warm Orange. They are different kinds of paint.
The same difference applies the other way round: Warm 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 Warm Orange on the colour wheel See Fire Drake on the colour wheel
All matches: Warm Orange equivalents · Fire Drake equivalents