My first tub was a dark green and I used it mostly after sundown. When it started leaking and I decided to replace it, I wondered if I would like a white tub. The local Marquis dealer loaned me an 8" square sample of their white tub material. I took it out where the tub was one dark, moonless night and found the white was too "visible," that it was too "light" for my taste. In other words, even though it was dark outside, I could still see the white of that sample. Combine that with the fact that I was used to a dark tub and I decided my new tub would be a dark color.
Now, on the other hand, I'll be the first to admit that pictures I've seen of white tubs with that LED light on look a whole lot cooler than my tub does. The dark color of my tub means the LED light on my tub lights up only that one end of the tub.
Finally, keep in mind that my first tub came with my house. Had it been a lighter color, I might have had a different opinion. But I'm quite happy with what I have now.
Hope this helps.
Jim