WordPress plugin replaces WooCommerce selects with variation swatches.

Customise the default color palette used by Iris Color Picker

Appealing color, image, and button variation swatches on your WooCommerce Shop and Product pages in minutes to increase sales.

A simple plugin that allows you to customize 8 color swatches underneath the Iris Color Picker. This works for instances of the color picker in themes, plugins, or core.