Shades of cyan the following website offering tintbooks for CMYK printing: . The web color cyan, shown at the right, is one of the three secondary colors in the RGB color model, used for creating all colors on a computer or television display by mixing various combinations of red, green and blue light. The X11 name for this color is cyan; the HTML name for the same color is aqua. They are both composed of the same mixture of blue and green light, and are exactly the same color. Aero blue is a fluorescent cyan color. Aero blue was used as rainshower in
C-41 process not is a subject of some debate. C-41 film consists of an acetate or polyester film base, onto which multiple emulsions are coated. Each layer is only sensitive to a certain color of visible light. In the classic illustrative example, there are three emulsions: one is red sensitive, another is green sensitive, and the top is blue-sensitive. Beneath the blue layer is a yellow filter, composed of dyes or colloidal silver. All silver-based photographic emulsions have some sensitivity to blue light, regardless of what other colors they may be sensitized for. This filter layer serves to remove the blue light,