Is there any comination of colors I can use to get a black or VERY dark color for royal? I thought I had black and I don't... I know I should have looked but I didn't Any input would be great. TIA

Mix blue, red and green until you get what you need. Should work....

..if you mix all your primary colors...red, blue and yellow you will get something very close to black!

thanks! I will try that!