only one color of topwater . . .

[wvhunt]

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

[Bass Rutten]

Once you go black…

[Bazoo]

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.

[GRiver]

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.

[DogBone_384]

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

[Spankey]

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

[Jar11591]

Black 

[Bird]

Bone 

Silver/Black 

Monkey Butt 

 

[Zcoker]

Black all night every night 

[Skunkmaster-k]

Bonariffic 

[bowhunter63]

Bone 

[Columbia Craw]

Soft off white butter cream.

[Alex from GA]

Chome and blue.

[rboat]

clear or a ghost minnow.

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

[crypt]

Bone.......

[Bankbeater]

Chrome / Black

[LonnieP]

White

[GetFishorDieTryin]

black