Royal blue & white
Blue.
When the colors red and blue are mixed they make purple.
There aren't any colors that can be mixed to make blue, because blue is a primary color.
Blue and Red
The two colors mixed together to make dark blue is blue and black. You can make any color darker or lighter using black and white.
blue and red
Blue and green
Blue and red mixed together make violet, or purple.
Red, blue, and yellow are primary colors. No other colors make them. They are mixed to make other colors...
which colours do I mix to get ultramarine blue?
blue
red and blue