ΔE 18.0, loose: different enough that you should pick on purpose. Diarylide Yellow is a little lighter, more saturated, cooler than Fire Dragon Bright.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 18). Diarylide 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 Diarylide Yellow on the colour wheel
All matches: Fire Dragon Bright equivalents · Diarylide Yellow equivalents