Blue: Winterton Blue, by Trezza Azzopardi (a Man Booker Prize finalist for The Hiding Place)
Red: Red-Rose Chain, by Jeffrey Moore (fell in love with it here)
White: The White Tiger, by Aravind Adiga (2008 Man Booker Prize winner, already TBR)
Black: The Black Prince, by Iris Murdoch (a book fair find from a favorite author)
Silver: The Silver Donkey, by Sonya Hartnett (couldn't resist after this)
Gold: Joss and Gold, by Shirley Geok-lin Lim (taking a chance based on these themes)
Plus my choices:
Yellow: Half of a Yellow Sun, by Chimamanda Ngozi Adichie (2007 Orange Prize winner, so already TBR)
Green: The Greengage Summer, by Rumer Godden (another favorite author, already TBR). But I'm still hoping to locate The Green Equinox, by Elizabeth Mavor, instead. It's a Man Booker shortlisted novel but it's nowhere (and therefore, my latest quest object). Even ABE doesn't have it.
Purple: Purple Hibiscus, by Chimamanda Ngozi Adichie (doubling up on Adichie based on this)
In case you are joining and stuck for color ideas, I've got two helpful words for you: Travis McGee.