CMYK color model spot colors (such as metallic inks), and finishes such as varnish, which enhances the glossy appearance of the printed piece. CMYK are the process printers which often have a relatively small color gamut. Processes such as Pantone's proprietary six-color (CMYKOG) Hexachrome considerably expand the gamut. Light, saturated colors often cannot be created with CMYK, and light colors in general may make visible the halftone pattern. Using a CcMmYK process, with the addition of light cyan and magenta inks to CMYK, can solve these problems, and such a process is used by many inkjet printers, including desktop models. Comparisons between RGB
Blue and Green Music the eye." The painting is part of the Alfred Stieglitz collection, a gift by the artist to the museum in memory of her husband. 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