ΔE 14.0, fair: the same colour family, but not a straight swap. RLM 04 Yellow is a little lighter, more saturated, cooler than Fire Dragon Bright.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). RLM 04 Yellow is a little lighter, more saturated, cooler than Fire Dragon Bright.
The same difference applies the other way round: Fire Dragon Bright is a little darker, 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 Fire Dragon Bright on the colour wheel See RLM 04 Yellow on the colour wheel
All matches: Fire Dragon Bright equivalents · RLM 04 Yellow equivalents