Sepia is a deep brown colour.
Sepia is a tone on tone usually reserved for photographs vs color.. it can be brown tones or tones of gray and black..
You can't as red is a primary colour and you can't make any of the primary colours out of any other colours ( yellow, blue, red )
yes and so is red and blue :P but in science the colors are red blue and green
If you are talking about 'subtractive' color - like the color of your pants or a chair or a car then it is because black is the presence of all colors and the color reflected back at your eye is...