To my eye, that fabric is not so very unique that it makes a lot of sense to go searching for a perfect match. In your place, I would: 1. use it, along with 4 or 5 very similar fabrics with the same saturation and color family but varied prints, and go for a coordinated scrappy look or 2. Use it as a flange, the binding, cornerstones, what have you. or 3. Find another fabric that is readily available that will be just as good, and use your current piece up as a throw pillow or or coordinated pillow shams.
Unless you just love the hunt for the exact match, I don't see the point in doing it. There is a lot of fabric in the world, and a whole lot of it is going to work for any given project just fine, and often without the time and money expenditure of trying to find exactly the same two tone blender from a couple of years ago.