Engine color question

Hi everyone, I have a 1971 Swinger with the original 318LA, decided to pull the motor and do a re-ring, rod bearing and gasket set. the motor has never properly been degreased or repainted so i thought what a perfect time to do that also. Once I started cleaning it up and sand blasting parts I noticed that the original paint is turquoise and not blue like other 71's I have seen at local shows.
Anyways I'm trying to keep somewhat of an OE look to the car, so do I paint it Blue or Turquoise? I'm stumped any help would be appreciated.