Color match

I just need a list of colors used in the forget-me-not version of the Bouquet theme. I can’t make the backgrounds of images transparent (please don’t tell me how to manage the code for that. I’ve been trying for three hours to follow the instructions and will accidentally destroy something important if I keep screwing with the code). All I want to do is use the same background color on my images in Photoshop as the theme uses, so it will *look* transparent. Why is there not a list somewhere? Am I missing some resource somewhere?