ΔE 10.3, fair: the same colour family, but not a straight swap. Blazing Ink is more saturated, cooler than Safety Orange. They are different kinds of paint: Army Painter Safety Orange is an opaque base/layer paint and Formula P3 Blazing Ink is an ink, glaze or transparent 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). Blazing Ink is more saturated, cooler than Safety Orange. They are different kinds of paint.
The same difference applies the other way round: Safety Orange is more muted, warmer.
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 Safety Orange on the colour wheel See Blazing Ink on the colour wheel
All matches: Safety Orange equivalents · Blazing Ink equivalents