Selling multiple colors of the same item

[neongreenglow]

How do you list several items that are the same item, same size, but different colors?

Help would be greatly appreciated. 

[rfmtm]

Create a fresh new listing and select the category.  If the category supports variations you will see the option to Create Variations.  Name a variation "color" and add a list with an entry for each color and quantity you have of each.