Chick one- splash
Chick two - blue
Chicks three- blue- I think
Chick four- my darkest maybe blue or black
These are my guesses, they are straight run , I don't think feather sexing works on wyandottes but I will say that chick one and two have more crowded/ messy primary feathers and chicks three and four have more clean/even primary feathers so ... Who knows?