Laura Makes sense for a virgin.
Traditionally, it was shameful for a woman to not be a virgin on her wedding day, and people tried to hide it, so it would make sense if women who were never married wore white to their wedding, even if they weren't virgins, and widows or divorced women wore the pink or red they were given at their first wedding. (You don't have to be a virgin to wear a white dress.)
...unless you want to advertise that kind of thing and risk a society that shames women who wear it. Then, maybe white for virgins, pink for married women, and red for "bad" women. (Because red is also the color of danger, a reference to The Scarlet Letter, and might imply she has "too much of what turns white into pink".)
Let's see what a site has to say about black...
The color of power and sophistication. Black is an incredibly strong and intimidating color that exudes authority and makes us feel secure and protected. Often seen at formal and prestigious events, this mysterious marvel arouses and seduces our senses with its elegance and sexiness.
A very fitting color to secure and protect our mysterious site administrator. š