We're looking to replace 4 large windows with vinyl replacement windows and would like to get a low-e, energy star window, but have been told that such windows always come slightly tinted. We have limited light and don't want anything that would further tint. I've searched the boards for "tint", but may be missing something obvious so my apologies if so. All house projects require more time to do the research than it takes to get it all done, and you get the oportunity to be ignorant with each new one.
I'm going from memory, but I think I have these numbers correct:
Clear double glass, surprisingly, blocks about 18-20% of visible daylight (You'd think it would let through 100%). A single Low E coating is 24% blockage, and a double coat of Low E is 26% blockage. Therefore the "tinting" is virtually non-existent at only 4% to 6%. If people can not notice the 20% blockage; it obviously would be tough to discern the extra 4% to 6%.
Perhaps what you may be concerned about is a related but different issue. Some hardcoat single-coat Low E coatings, especially those of the 1980s, had a particular color bias to them. They are still around. They sometimes had pink and purple hues in them, and as they refected the sky on the outside they could look blue in appearance from the outside. Many Low E coatings nowdays are a neutral density and you won't see any discernable color. Low E is highly recommended; it keeps a house cooler in summer and warmer in winter.