While this is the not the same seat it's very close to the color of the lighter brown shown as one of your options. It at least gives you a starting point of what the COLOR would look like on the red tanked bike. Personally, I think there's too much going on with my bike and the Red tank/silver side covers and brown seat.
Plan for the winter is to take the Dart Screen in and have it painted red to match the tank with a silver stripe down the middle and order a pair of red side covers. That will tie things together a little better.