RGB is an additive color model, while CMYK is subtractive. RGB uses white as a combination of all primary colors and black as the absence of light. CMYK, on the other hand, uses white as the natural color of the print background and black as a combination of colored inks. Graphic designers and print providers use the RGB color model for any type of media that transmits light, such as computer screens. RGB is ideal for digital media designs because these mediums emit colors like red, green, or blue light.
With the RGB color model, pixels on a digital monitor are viewed with a magnifying glass all one in three colors: red, green, or blue. The white light emitted through the screen blends the three colors on the eye’s retina to create a wide range of other perceived colors. With RGB, the more color beams the device emits, the closer the color gets to white. Not emitting any beams, however, leads to the color black. This is the opposite of how CYMK works.
CYMK is best for print materials because print mediums use colored inks for messaging. CMYK subtracts colors from natural white light and turns them into pigments or dyes. Printers then put these pigments onto paper in tiny cyan, magenta, yellow, and black dots – spread out or close together to create the desired colors. With CYMK, the more colored ink placed on a page, the closer the color gets to black. Subtracting cyan, magenta, yellow, and black inks creates white – or the original color of the paper or background. RGB color values range from 0 to 255, while CMYK ranges from 0-to 100%.
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