The primary colors are red, blue and yellow. Secondary colors are created by mixing two primary colors together, resulting in green, violet and orange. Tertiary colors are made from mixing a primary and secondary color, with six possible combinations. Printed materials use the CMYK subtractive color model of cyan, magenta, yellow and black. Screens use the RGB additive model where red, blue and green light are combined. Color is also associated with emotions and music tones.