ΔE 17.8, loose: different enough that you should pick on purpose. Creed Camo is noticeably darker, cooler than Rigor Mortis.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 18). Creed Camo is noticeably darker, cooler than Rigor Mortis.
The same difference applies the other way round: Rigor Mortis is noticeably lighter, 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 Rigor Mortis on the colour wheel See Creed Camo on the colour wheel
All matches: Rigor Mortis equivalents · Creed Camo equivalents