Best overall sight colors?

For my birthday I've decided to buy myself most likely a Glock 43. I remember when waiting on my license to get approved that a certain color for fiber optic (I think it was green) was best overall because of sunset, but can't find where I read/heard that.Retired LEO at a store when I was price checking said night sites were the best. But I remember one black out I decided to test night sites on my CZ and had to charge them for like 30 seconds with a flash light.Logic tells me IWB night sites won't be charged and I won't even 30 seconds to charge and I had time to pull flash light and pistol so why am I charging sights?TLDR; sights that perform well at all times of day. via /r/CCW http://ift.tt/2dtLrTm