Pan is the wild god of mountains, therefore it is reasonable to assume a color he favors is green.
green
Essentially all woodland creatures and Satyrs are Pans Allies.
green
The Greek gods could change their hair color.
chicken
As the Sky God and Ruler of the Heavens, his favorite color was sky-blue.
purple
green
Essentially all woodland creatures and Satyrs are Pans Allies.
Being mythological gods, the Greek Gods could see more colours than the humans they made so we do not have a name for Zeus's favorite color.
green
the sun
god dang red
The Greek gods could change their hair color.
His favorite pet is his bird, the eagle.
war
chicken