Anthony
In reply to your original question, there are too many years and too many changes in paint chemistry separating the original coating of these cars and the present day to rely on a number or name for identification. Confusion existed 50 years ago and it persists to this day.
My two cents worth of input: have some samples mixed and pick the one you like!
This pic of a 60’s Glasurit catalog may help identify the difference between the two light blues commonly misnamed as Celeste Blue.