Small project - locate and click page element using OpenUA.Selenium

I have a web-page on which one of the elements I am trying to automate a click to is implemented as a span, rather than a button. I just want to be able to locate it and send it a click. The element is shown in this video: [login to view URL] (span.img-swatch) If you can automate this via [login to view URL], send a click to it and give me the code then that would be perfect. Thanks! I believe that this will need to be achieved by sending a command to the javascript layer.