ΔE 16.5, loose: different enough that you should pick on purpose. Tesla Blue is a little lighter, more saturated, warmer than Omega Blue.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Tesla Blue is a little lighter, more saturated, warmer than Omega Blue.
The same difference applies the other way round: Omega Blue is a little darker, more muted, 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 Omega Blue on the colour wheel See Tesla Blue on the colour wheel
All matches: Omega Blue equivalents · Tesla Blue equivalents