I have to admit that I picked this photo up somewhere on Style Forum, neglected to note the source, and now I have no idea how to credit it. I hope the subject of the photo will identify himself because I think he's showing men with high contrast coloring a good way to accessorize a gray suit.
Lower contrast skin and hair would look washed out in this combination but a white shirt and a gray suit make an outstanding pairing for men with dark hair. Here the gray wool necktie adds texture, and the brown oxfords and bitter red socks contribute some discreet color. Very nicely done. The fireplace, bar and dog are gilt on the lily.