I'll buck the system and say no color or clear.  I've had good luck with various clear topwater lures over the years.

Once you go black…

Bone; It'll look good for a frog belly, on a plopper, on a jitterbug(black is my favorite there), on a popper, and on a walking bait.

Bone…or maybe chrome black back.  Wait, wait….. clear, no, baby bass…. Yea, yea…. Black, or even a Shad color….. really blue-chrome…..give me a minute, I’ll get it.

Might be why I have so many.

My best topwater is a bluegill Rapala Skitterwalk, hands down.

Silver with a black back. 
Buzz would have to be black also. 

Black 

Bone 

Silver/Black 

Monkey Butt 

 

Black all night every night 

Bonariffic 

Bone 

Soft off white butter cream.

Chome and blue.

clear or a ghost minnow.

They can't see it but, react to the noise / commotion.

Bone.......

Chrome / Black

White

black