As I finish my first Fire Wasp Razor, I figure I should show you where I am getting the color scheme from. This link will take you to the place that I have found for the Space marine Chapters. I am not saying its the end all be all list, but its a good list none the less its a pretty thorough one for me to use.
The one I want you to pay attention to are the Fire Wasps. The other ones are nice too, but not being painted by me right now.