I bought a new color, 'Ivory Black', and really wanted to paint a darker painting to see it in action. I think it is great. I have had teachers and other painters warn me about using black and have avoided it for a long time. Wow, I don't know why I listened. I end up waisting less paint, and can get to the right value much quicker. Hmmmm, I wonder what other colors I am missing out on...?