I overdyed the fabric used for the border. The original fabric, designed by Simpson and Minich for Moda, is the bright yellow and red swatch with the white selvage, below. I think that is what the fabric originally looked like, but I wanted a more subdued color, so I overdyed it with shades of burgundy, brown and violet to find the right color combination for my version of this border. You can see the test swatches below.
I settled on a mix of light brown and a little burgundy dye to make the fabric what I wanted it to be.