a couple actual manufacturers you can try are gahh or katskinz. barrow had them but since closed the automotive dept. but ci or the paddock should have them in stock. legendary does not carry them, which is a shame because they make a great product. if you really got stuck i can make them, but that would be as a last resort, i also have white interior and would not consider any other color for my own car.
make sure whoever you get them from that they sew foam into the covers not dacron (synthetic cotton) as they would look like sh*t when they are installed.