The reason I agree with those ladies above is that I find the border as you have it now is too light and doesn't do a good job of framing the quilt. Rather, it blends in. When I add borders, I like to think of the quilt as the picture and the border as the frame. I want it to hold the quilt together (color/pattern-wise) and add a stopping point. So, if you want to use that purple, I would add a second and third border, on either side of the purple to better delineate it. Clear as mud?