Equal CMY, Cyan, Magenta and yellow makes gray. Thats how you calibrate your paintings. if it's blueish gray, you're using to much Cyan. same with reddish gray and yellowish gray. get those in control and you'll balance out your colors. Cyan has 2 unwanted colors. the unwanted #colors of Cyan are magenta and yellow. Blue has cyan and magenta. you can't remove magenta from a tube of blue paint. if you can't remove the unwanted color, your calibration is off. sort of. blue has magenta and adding yellow will make it gray, sort of. it'll be blueish gray. 50% C and 50% makes blue and you add 25% yellow to make gray. yellow is the unwanted color of blue. for darker colors, add CMY till you get a dark gray then add one or two of the colors to make colors like brown, dark green. CMY together technically make black, digitally but it's a dark muddy color using paint but we have black to make it black. Add Cyan to black , you'll get a bluish black. or have less Y in CMY. Don't forget CM makes blue. Never heard of cyanish black but you hear it now. M and Y is the unwanted color of cyanish black. sometimes you use unwanted colors to darken things. #Printing presses always have problems with getting cyan a pure cyan. cyan is the hardest color to get pure. thats why printing presses add more cyan to get it right. example: 55%C-50%M-50%Y make midtone gray. speaking of midtones. I use highlight-quartertones-midtones-3quartertones and shadows. you'll find that in my #art101 #courses. what do you think about the colors? we'll talk about cells if you like. This is C3, Cyan 3. the 3rd coat of 10% cyan are painted in the white areas. first lets learn CMY and grayscales in #art . who is in?