ΔE 14.0, fair: the same colour family, but not a straight swap. Inner Light is noticeably lighter, more saturated than Plague Yellow.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Inner Light is noticeably lighter, more saturated than Plague Yellow.
The same difference applies the other way round: Plague Yellow is noticeably darker, more muted.
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 Plague Yellow on the colour wheel See Inner Light on the colour wheel
All matches: Plague Yellow equivalents · Inner Light equivalents