How to Change the Color of Labels in Gmail

In Gmail, labels help you organize your emails. When you have two labels that are similar in name, you may need another method to tell the two labels apart. For this reason, Google enables you to color code your labels in Gmail. In addition to placing a color next to the actual label, Google also adds the color to the subject line of an email, enabling you to pick out messages with that label at a glance. You can select from 24 preset colors or create your own color using the Custom Color option.

Navigate to Gmail and hover your mouse cursor over one of the labels on the left side of the screen.

Click the small gray box to the right of the label.

Click a preset color from the drop-down menu or click "Custom Color" to create your own color.