I always had a problem with JR Ward and her depiction of The Brothers. Of course, the problem being that none of them are of any other race. Even Xhex, who is a train of a woman, is white. Anyway ... When I first started the series, I was always under the impression that Darius (the Brother who died in the beginning of book 1) was black but it seemed like everyone didn't think so. So I revisited the beginning of the book and read a few lines and decided to open it up for discussion.
If you have the physical book, on page 11 of Dark Lover (chapter two) it says "Darius was a blurry shape, his dark coloring and black clothes the only information Wrath's vision gave him."
Then on page 66, Wrath describes Beth has having "creamy swells" for breaths. Now that sounds like her boob area is creamy in color.
So if he saw Darius as dark color and Beth as creamy, wouldn't that constitute Darius as black?