Choosing the right colors for your barcodes is essential to enhancing the efficiency and accuracy of the scanning process. Optimal barcode colors help ensure that barcodes are clearly readable by scanners, reducing errors and expediting the process. In this post, we’ll dive into the significance of selecting the right barcode colors and what factors to keep in mind for optimal scanning performance. 

The above image illustrates examples of acceptable barcode color combinations (these barcodes can be scanned and decoded with ease by a barcode scanner).

Why Choosing the Right Barcode Colors Matters

Selecting appropriate colors for your barcodes is crucial to ensuring they stand out against their background, facilitating quick and accurate scanning. Ideal barcode colors typically involve high-contrast pairings, such as black on white or white on black, making them easily scannable. Using colors that are too similar can result in scanning errors and delays, as scanners may struggle to distinguish the barcode from its background. Additionally, the choice of colors affects barcode readability under different lighting conditions. For example, in low-light settings, colors that offer good contrast can enhance scanning precision. Conversely, colors that are too bright or reflective can cause glare and impede the scanner’s ability to read the barcode. 

Can My Barcode Have a Colored Background? 

Yes, barcodes can have colored backgrounds, but it's essential to use a light color to maintain high contrast with the black bars. Avoid using black as a background because scanners can't detect the left and right white ‘quiet zones’.

While black bars on a white background is the best combination, other color pairings can also work. However, not all colors are suitable. Here are some guidelines:

White and warm colors (yellow and red) are invisible to barcode scanners, making them suitable for the barcode background.

Black and cool colors (blue, purple, green, and dark brown) are visible to barcode scanners, making them suitable for the vertical barcode bars.

Contrast is vital. The vertical bars should be in a darker color than the background to ensure readability. We recommend testing your printed barcode with various barcode scanners to confirm its readability, as scanner color calibration may vary slightly.

By choosing high-contrast color combinations, considering different lighting conditions, and understanding the needs of the scanning technology, you can ensure your barcodes are readable and can be scanned quickly and accurately.

For more information about barcode colors (as well as dimensions and placement), please visit International Barcodes.