Biarritz Blue
Don't be fooled by the BMW blue . It is black compared to the color of your Alfa. My car was delivered to Auto Koenig, Munich in 57-58 with Biarritz Blue and the closest color I have come up with is 1957 Corvette Frost Blue. If you do a search on google you will find it. It is a very non-metallic to the eye in shaded light but a fine metallic not seen in today's formulas. There is another car in NL of the same color otherwise this color was very rare and not listed by code in the Alfa the color archives. I do not have the Dupont or Diztler code handy but will get it to you off line. I also have full car pictures after the fact before assembly. Rick USA