Light Blue Coats from Bloomingdale's
If you're after a thrifty option, this Bloomingdale's Coat will fit the bill. It's a fail-safe choice, while not very expensive. In this price range, you can also look at this BB Dakota Coat. It's also a popular item and won't break the bank.
If you're looking for a bargain, take a look at this Elie Tahari Coat. While the price is very reasonable, this piece is an easy wardrobe update.