CMYK: refers to Cyan, Magenta, Yellow, and Black. It is a subtractive color model used in color printing process.
Four Color Process (4CP): color image is separated into 4 different color values (using filters and screens - usually done digitally). The result is a color separation of 4 images, that when transferred to printing plates and printed on a printing press with the colored inks cyan (blue), magenta (red, yellow and black, reproduces the original color image. These four colors can be combined to create thousands of colors.
Gray Scale: continuous tone image devoid of color consisting only of white to black shadings.
Halftone: a color or gray-scale image that has been converted into a series of large and small dots.
Multicolor: artwork containing more than one color.
Opacity: An ink’s ability to cover the underlying color of the substrate.
Pantone Matching System (PMS): a book of standardized color in a fan format used to identify, match and communicate colors in order to produce accurate color matches in printing. Each color has a coded number indicating instructions for mixing inks to achieve that color.
Pigment: a coloring agent used to absorb and reflect light to come up with color. It adds brightness to the substance.
Process Colors: Cyan, Yellow, Magenta and Black (CMYK).
RGB (Red, Blue and Green): primary colors which are used to transfer printing images into CMYK process.