ΔE 18.0, loose: different enough that you should pick on purpose. Phoenix Feather is noticeably lighter, much more muted, warmer than Fire Drake.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 18). Phoenix Feather is noticeably lighter, much more muted, warmer than Fire Drake.
The same difference applies the other way round: Fire Drake is noticeably darker, much more saturated, cooler.
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 Drake on the colour wheel See Phoenix Feather on the colour wheel
All matches: Fire Drake equivalents · Phoenix Feather equivalents