Ahhh titles, I think that's the second thing I hate most (writing synopsis being the first). You have to come up with something catching, relatable to the book, and something that's not so common 20,000 other books come up with the title. It's a pain in the butt. Some recent advice I was given about titles was to keep them short 2-3 words show up best on thumb nails and you want to make sure you can see titles. The one thing I recommend is to check Google, Amazon, Barnes and Noble, and even Smashwords for books with similar titles, hell give Goodreads a try!
These are the results that I get for In Black and White:
This is what I get on Google. A few articles on interracial sex, a christian novel and a Goodreads link. That's without quotes and specifying novel, if I put quotes around it, I get a ton of photography references.
I have to say with all of these results, I'm confident that my title will stick out. Yes there are similar titles, but nothing the exact same, as well as little-if not none- of them deal with BDSM.
So remember when you are picking a title, make it catchy, make it unique, and relevant to the story.