Spot Color - A single color applied to one area or "spot" rather than layering colors on top of each other to achieve a desired hue.

See: Color Printing for more information on Spot Color.

Halftone - is an image made up of tiny dots that vary in size which produce an image of various tones of gray.

Duotones - two halftone images, which were produced using different screen angles, that are printed one on top of the other. Duotones are generally printed in black and another color.

Tritones - three halftone images, produced at different screen angles, which were made from the same image and then printed over each other in three different colors.

Quadtones - four halftone images, produced at different screen angles, which were made from the same image and then printed over each other in four different colors.

Process Color - four process colors, cyan, magenta, yellow, and black, printed on top of each other. Each color uses the same image produced at varying intensities, to reproduce a full color image.

See: Color Printing for more information on
Process Color Printing.

High Fidelity Color (Hi-Fi) - a method of color printing which utilizes additional process ink colors to produce a greater range of color.

See: Color Printing for more information on
High Fidelity Color Printing.

 
Prismatic Ink

Prismatic ink is the blending of two or more colors in a single printing unit. this produces a blend of color that is difficult to duplicate. It is most often used as a security feature.
 

See: Security Features for more information on
Prismatic Printing.