Handoff allows you to save colours for reuse in multiple places. To create a color, click + New Color and select a color from the picker that appears. Handoff will also ask you to give it a name.
When you've saved a color, you can reuse it by selecting it from the palette that appears below the color picker in the Styles tab. You can use the saved colors anywhere, from text to shadows and even gradients!
Saved colors can be used as CSS variables in your exported code. Your export will include a variables.css file that contains all the definitions.
