ΔE 8.3, close: similar, with a visible difference side by side. UK Azure Blue is a little darker than RAF Azure Blue.
✓ AK 3rd Generation equivalence chart lists these two as equivalents.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). UK Azure Blue is a little darker than RAF Azure Blue.
The same difference applies the other way round: RAF Azure Blue is a little lighter.
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 RAF Azure Blue on the colour wheel See UK Azure Blue on the colour wheel
All matches: RAF Azure Blue equivalents · UK Azure Blue equivalents