Hi, Rojosy!

I've used HPS lighting for an large indoor warehouse at a lumber yard. The color doesn't seem to be a problem to them. The products kept in the area are dimensional lumber, plywood, metal brackets, and the other "rough stuff"
All the molding, hardwoods, veneers... that color or finish is an issue are in a separate area, and are lit either by MH or 50K Fluorescents.
It all works very well.