CMYK color model leaves magenta, and white light minus blue leaves yellow. In additive color models, such as RGB, white is the "additive" combination of all primary colored lights, while black is the absence of light. In the CMYK model, it is the opposite: white is the natural color of the paper or other background, while black results from a full combination of colored inks. To save cost on ink, and to produce deeper black tones, unsaturated and dark colors are produced by using black ink instead of the combination of cyan, magenta, and yellow. With CMYK printing, "halftoning" (also called "screening") allows
Blue–green distinction in language "siwy" means blue-gray in Polish (literally it means the color of gray hair). The word "siny" refers to violet-blue and is used to describe the color of bruises ("siniaki"), hematoma, and the blue skin discoloration that can result from moderate hypothermia. Russian does not have a single word referring to the whole range of colors denoted by the English term "blue". Instead, it traditionally treats light blue (голубой, "goluboy") as a separate color independent from plain or dark blue (синий, "siniy"), with all seven "basic" colors of the spectrum (red–orange–yellow–green–голубой / "goluboy" (sky blue, light azure, but "does not equal"