What is the color of this platy fish called?

[Mallard_Bantam]

This is a male platy I picked up at a pet store a month or two ago, haven't seen one quite like it. There were some mixed bred looking platies in the same tank. Yellow obviously, but has blueish undertones, and a purple-blue irredecent on the tail, and the yellow itself is irredecent. The closest thing I've seen online and in person are the marigold wag swordtail type fish. Marigold platies I've seen tend to be a flat yellow color with red tails? I want to know the color type and how the alleles behave so I can make a strain of this fish. What to breed it to in order to replicate it fastest.

 

[RoostersAreAwesome]

Looks like a yellow wagtail