ΔE 13.7, fair: the same colour family, but not a straight swap. Angron Red Clear is more muted than Fiery Vermilion.
Can I use Angron Red Clear instead of Fiery Vermilion?
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Angron Red Clear is more muted than Fiery Vermilion.
Can I use Fiery Vermilion instead of Angron Red Clear?
The same difference applies the other way round: Fiery Vermilion 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.