I order my case as soon as I order my phone and put it in a case as soon as the phone comes. So, I see the color of the phone once at the time of unboxing and once in a while to clean it. So, does not exactly matter.As a practical matter, it barely matters what color the phone is at this point, since probably 90%+ of users cover the whole back up with a case.
I actually find the natural titanium a pretty nice color, but this is all super subjective stuff. For every complaint about muted colors, there another person going bananas because iMacs are too colorful and they want them to be black or something. ¯\_(ツ)_/¯