If you need paint, or paint supplies, go here and ask for Charles. He was awesome and found a color for me that isn't made anymore, but they still have the formula in their system. He also recommended other colors that I may like and finishes I needed.
FYI: if you are looking for a true gray with no undertones, you want the color Seattle 3213. It used to be made by Frazee until Sherwin Williams bought them out.