How to label gradient colors in an app

Quick answer：

Labeling gradient colors in an app typically involves using a consistent color palette and clear numbering or naming conventions. Designers might use a key or legend to display the gradient colors with corresponding numbers or names. The key should be placed in a location that is easily accessible and not distracting to the user experience. Additionally, the gradient colors can be labeled directly in the interface design, ensuring that the user can easily identify and understand the color transitions.