I would recommend a lighter color. There is a wide variety of colors that would be great. I am partial to green so I would suggest a mint green. There are also some great yellows and blues that would be terrific. I wouldn't gow with reds, grays or browns because they would contradict the look of the pine.
Pine cabinets would look good with a buttery yellow, or a light cream which would create a bright and cheery atmosphere in your kitchen. However, if you are looking for more of a contrast, a deep red would look good as well.