Most printed materials use CMYK or spot colors as their color profile. These inks are combined in the printing process by forming small rosettes which create the illusion of a complex color. Pantone spot colors are universally known ink colors with specific mixing instructions to ensure the color matches each time. RGB color stands for Red, Green and Blue, which are the colors that are displayed by an electronic screen.
The reason that colors on the printed piece look different from the colors on your monitor is that RGB color is displayed using electronic light produced by your monitor. Printed materials rely on surrounding light to display their colors. Printed materials also tend to be slightly less vibrant due to paper type, and ink selection. The designers at Henry Printing can assist you with paper selection and color choices before starting a project.