Purple is a trendy, San Francisco-esque wine bar/restaurant in the Hollywood Hill Vineyards shopping area. They have an extensive wine list (local and global varieties) and have many wines available by the glass. They also offer wine dinners and educational classes. The lunch and dinner selection includes great salads, creative pastas, sandwiches, individual pizzas, and various seafood/fish/meat entrees. On Sundays, they serve brunch from 11am-3pm, and currently feature 1/2 price bottles of wine all day. The desserts are spectacular, and the (highly potent!) coffee is served in a French press.
My husband and I have eaten there several times, and the service has always been careful and attentive. There is seating outdoor and indoors (with an upstairs loft). We tend to prefer the outdoor tables, since the indoor area is often crowded and noisy.