This barcode design features two rainbows made of pairs of colored stripes that correspond to UPC numbers. Getting my geek on, the numbers correspond to the letters in "rainbow" to make a double rainbow. Since barcodes are only 12 numbers long, I let the "r" be represented by the red start and middle stripes. The sequence starts on the left with red, orange, yellow, green, blue, indigo, and violet. Two stripes of red serve as a divider in the middle and then the colors go from violet back to red for a balanced look.
The background is actually transparent rather than white (or black) which means you can change it. Just click the "Customize it" button, then click the "Edit" drop-down menu in the sidebar, click "Background," and select your color. When you're done, click "Add to cart" to purchase your customized design.