only for sl (sexlinked) mutations in some instances you can tell E.G. Pallid cock x normal hen = 100 Pallid hens, or Lutino cock x Green hen = 100 Lutino hens.
the father of your chick was a GreyGreen (not Olive which is actually two Darkfactors on Green) masking Violet -if he produced violet without the aid of a violet hen.
the mother of your chick was Blue.
Your chick is Green*, split to Blue
You can't nest sex from such a pairing- there are a couple of choices to find out right away...dna or waiting it out
*Got a better pic of his tail in natural light?