ΔE 12.2, fair: the same colour family, but not a straight swap. Ray Gun Glow is a little lighter, warmer than Skink Blue.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Ray Gun Glow is a little lighter, warmer than Skink Blue.
The same difference applies the other way round: Skink Blue is a little darker, 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 Skink Blue on the colour wheel See Ray Gun Glow on the colour wheel
All matches: Skink Blue equivalents · Ray Gun Glow equivalents