Just a tip....your local Bunnings or Dulux paint store will have a master book that you can look through. It has thousands of colours that don't appear in their named products. Do not rely on computer representations as they fail dismally.
I discovered the grey paint today that I have been looking for ages for. Its is a beautiful delicate grey called 50BB 72/006. Just gorgeous and goes well with Vivid White.
Happy colour hunting!