CMYK color model color reproduction and they may be viewed as the inverse of RGB. Cyan absorbs Red, Magenta absorbs Green, and Yellow absorbs Blue (-R,-G,-B). Since RGB and CMYK spaces are both device-dependent spaces, there is no simple or general conversion formula that converts between them. Conversions are generally done through color management systems, using color profiles that describe the spaces being converted. Nevertheless, the conversions cannot be exact, particularly where these spaces have different gamuts. The problem of computing a colorimetric estimate of the color that results from printing various combinations of ink has been addressed by many scientists. A general
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"