ΔE 23.8, loose: different enough that you should pick on purpose. Meaty Ochre is noticeably darker, much more muted than Fire Lizard.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 24). Meaty Ochre is noticeably darker, much more muted than Fire Lizard.
The same difference applies the other way round: Fire Lizard 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 Fire Lizard on the colour wheel See Meaty Ochre on the colour wheel
All matches: Fire Lizard equivalents · Meaty Ochre equivalents