Can I print barcodes using colored ink?

Barcodes are electronically read using devices that rely on strong contrast between the printed bars and the background color. The bars must be dark and background must be light. While some scanners may be able to decode certain colors, it is not recommended to use colored ink when printing barcodes unless you have verified that the barcodes are scannable in the environment where they will be used. Traditionally, barcodes are printed using black ink on a white background.