Color space transparency. Common color spaces based on the RGB model include sRGB, Adobe RGB, ProPhoto RGB, scRGB, and CIE RGB. CMYK uses subtractive color mixing used in the printing process, because it describes what kind of inks need to be applied so the light "reflected" from the substrate and through the inks produces a given color. One starts with a white substrate (canvas, page, etc.), and uses ink to subtract color from white to create an image. CMYK stores ink values for cyan, magenta, yellow and black. There are many CMYK color spaces for different sets of inks, substrates, and press
Carolina blue due to contrast issues and section 509 web requirements. Oddly enough none of the colors match the selected Pantone 542 which would be a hex value of , RGB of (102,153,194), and a cmyk value of 47,21,0,24. The North Carolina Tar Heels athletics department has their own formulation for Carolina blue. Carolina athletics blue has the same CMYK color representation as the university's version of Carolina blue, but the RGB representation for Carolina athletics blue is Red 123, Green 175, and Blue 212. This results in a Hex code of , the official matching hex code for Pantone 542 C.