Why are barcode colors and spacing critical to the scanning process? What colors should be avoided in the bars and spaces?
If poor color choices are made, the bar code symbol might not scan due to poor symbol color contrast. The suggested color combination is black bars and white spaces. Avoid red, reddish, pastel or light colors for the bars and dark colors for the spaces. Poorly designed coupons may result in hard-to-handle fees from retailers.
