ΔE 14.7, fair: the same colour family, but not a straight swap. Dead Flesh is noticeably darker, more saturated, warmer than Slime Yellow.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Dead Flesh is noticeably darker, more saturated, warmer than Slime Yellow.
The same difference applies the other way round: Slime Yellow is noticeably lighter, more muted, 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 Slime Yellow on the colour wheel See Dead Flesh on the colour wheel
All matches: Slime Yellow equivalents · Dead Flesh equivalents