Red and Blue
blue and red
Purple (violet) is a secondary color which can be made by mixing equal parts of red and blue (both primary colours).
black and white
purple!!
blue and yellow
Assuming by 'plum' you mean purple - mixing red & blue together will give you the colour purple.
For printing, almost anything down to very dark red-browns, which is why need to they add black ink to get solid blacks, For television, almost anything. Neither will give fluorescent ("Dayglo") colours, nor (on plain paper) will printing give you the iridescent colours you get on Easter egg wrappings. Primaries are red, blue and yellow. Blue+Yellow=Green Red+Blue=Purple Red+Yellow=orange When all mixed together, it creates a light shade of brown Hope this helped -Pearlpack
The dye needed to produce purple clothing was created using an expensive gemstone which had to be ground into a powder and mixed with other chemicals and water to give the right colour. This meant that the cost of producing purple clothes was extremely high and thus so were the prices. Nowadays other synthetic compounds can be used to create the same colours at a much smaller cost which means purple is widely available.
Black and white
The familiar colour diagram will NOT give you the full palette of colours. To get this you'll need the shades and tones as well; the blacks and whites. For light brown a mix of green and orange, plus a little black. Some white will lighten it.
Secondary colours are the result of mixing equal parts of two of the three primary colours. Red + Blue = Purple Red + Yellow = Orange Blue + Yellow = Green
gray and and shiny white