How can I add a 'More Colors' option to my products?

Store Design
1

Hi guys!

We really want to add a MORE COLORS option for our products. Something like this:

https://fearofgod.com/collections/seventh-collection/products/the-overcoat-blush-grey

Is there a code or an app that can do this quickly and easily for our store: humnleague.com

Thanks for all assistance.