Shades of magenta yellow and cyan, constitute the three subtractive primary colors of pigment. (The secondary colors of pigment are blue, green, and red.) As such, the CMYK printing process was invented in the 1890s, when newspapers began to publish color comic strips. Process magenta is not an RGB color, and there is no fixed conversion from CMYK primaries to RGB. Different formulations are used for printer's ink, so there can be variations in the printed color that is pure magenta ink. A typical formulation of "process magenta" is shown in the color box at right. The source of the color shown at
Blue and Green Music Blue and Green Music Blue and Green Music is a 1919–1921 painting by the American painter Georgia O'Keeffe. Painted in her New York years upon the idea that music could be translated into something for the eye, "Blue and Green Music" is a work of rhythm, movement, color, depth, and form. It is also one of the paintings that was expressed by her feelings. The painting uses colors that are both subtle and bold in order to capture the variance of tones that one would find in music. O'Keeffe described music as being able to be "translated into something for