Navy blue is primary blue that is darkened by adding a very tiny amount of black.
Blue Violet.
blue violet
blue + red = purple (aka violet)
Violet
Combine blue and pink, or blue and red and white to get violet
blue + red = purple (aka violet)
Red and blue.
purple.
black
blue, red, and purple
violet
When the colors of red and blue are mixed together, they make the color purple. Red and blue are both primary colors.