"What is the difference between a Blue Point Himalayan and a Lilac Point Himalayan."
That is a question that can be hard to explain. So, I took two close up pictures of my Himalayans' faces to show the difference between the two Color Points. As you can see below the Blue Point Himalayan is darker than the Lilac Point Himalayan. Also, Lilac Points have lavender pawpads and nose leather; whereas, Blue Points do not.
Note: The Lilac Point below is still just a kitten. His Mask will eventually be larger.