I'm looking at my Superior Threads color cards and there are several variegated options. You can go to their website to check them out. One is the "Rainbow" line and the color in that line is #831 Mediterranean or #835 Montego Bay. In the "King Tut" line, look at #927 De Nile or #930 Thebes. All of these have the blue and green colors in your quilt. I use variegated threads in most of my quilts and it always ties it all together.