The Best Cover Gray Hair Color Ideas. Christophe robin temporary color gel. Web for gray hair coverage specifically, we offer a range of shades that we call knockouts,” both because they are gorgeous and because they “knock out” any gray hair.

Web krysta biancone, hair stylist, says, “the best color to cover gray hair depends on the individual’s skin tone and hair color. Web the time to leave hair dye in for gray hair is as follows: If you want to completely cover your gray hair—and not just disguise it.