In this case, we're looking at the Alexis by Jon Renau product page and trying to figure out what color the first model is wearing.
If you click on "Click here to see more" below the highlights in the product description, this will expand the product page and you'll be able to see the names of all the colors being modeled.
And this is what it will look like:
So the first model is wearing 6F27, or Caramel Ribbon.
I hope this information has been helpful!