I am going to be repainting my bedroom. Right now it is a semi gloss Turquoise color. I want to paint it a cool gray color. I want to know what are some of the best cool gray paint colors. For primer, should I buy a separate primer or buy a 2 in 1 paint + primer. I am going to be changing the paint finish to a flat or eggshell finish. I attached a picture I found online. I really like the wall color in the picture. Please let me know If you know of a color that i similar or even a little lighter than that.