ΔE 23.9, loose: different enough that you should pick on purpose. Phoenix Orange is noticeably darker, much more muted than Life Red.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 24). Phoenix Orange is noticeably darker, much more muted than Life Red.
The same difference applies the other way round: Life Red is noticeably lighter, much 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.
See Life Red on the colour wheel See Phoenix Orange on the colour wheel
All matches: Life Red equivalents · Phoenix Orange equivalents