ΔE 18.8, loose: different enough that you should pick on purpose. Plasma Coil Glow is much more saturated, cooler than Deep Sky Blue.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 19). Plasma Coil Glow is much more saturated, cooler than Deep Sky Blue.
The same difference applies the other way round: Deep Sky Blue is much more muted, 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 Deep Sky Blue on the colour wheel See Plasma Coil Glow on the colour wheel
All matches: Deep Sky Blue equivalents · Plasma Coil Glow equivalents