There are so many factors to consider. Is this the background fabric that we see here? Is this just one of several plates on a quilt? If so, how does it compare with the others? Where are you going to use it? What is the color palette there? I can imagine it being perfect as is in certain settings. I can imagine a whole quilt of sort of neutral plates, depending on the factors I just mentioned. I do think heather's suggestion of a yellow center is a good one.