enamals are great for this I never bother painting up my jig heads but white would be my choice or red[dark red]
If you would like to try improving your hook ups try a spray on scent like squidgy scents there cheap around $5.00 for 100 mls or so and smell exactly like prawns,garlic or anaseed depends on your choice.I have tried them all and found prawn to be best for added smell strength spray your pack generously when you open a new pack of SP's then next trip they will soak up the scent and it really does work...
Painting jig heads or colored heads never really changed my hook up rates, having said this lure studies of colors for attracting fish reds are the go. they imitate a fishes gills opening when feeding or when in distress [dying] therefore stimulating more interest in what the fish is doing..
Id try both wont hurt paint them red and use a spray scent and if you catch a ship load let me know because dinner is at your place ,,your shout