ΔE 7.2, close: similar, with a visible difference side by side. Pale Blue is a little darker, more muted than Light Blue (Luftwaffe).
Usually, if you are not matching paint already on the model. Close match (ΔE 7). Pale Blue is a little darker, more muted than Light Blue (Luftwaffe).
The same difference applies the other way round: Light Blue (Luftwaffe) is a little lighter, more saturated.
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 Light Blue (Luftwaffe) on the colour wheel See Pale Blue on the colour wheel
All matches: Light Blue (Luftwaffe) equivalents · Pale Blue equivalents