CMYKtulostukseen

CMYKtulostukseen, or CMYK printing, refers to the color model used in color printing technology. The acronym CMYK stands for cyan, magenta, yellow, and key (black). These four inks are combined in varying proportions to produce the full spectrum of colors on printed media. The CMYK process is distinct from the RGB model, which is used for digital displays, because it relies on subtractive color mixing rather than additive mixing.

In practice, a digital image is converted from RGB to CMYK during prepress preparation. Conversion software analyzes the color data and assigns appropriate ink amounts to each of the four keys to reproduce the original image as accurately as possible on paper or other printable substrates. The “key” or black ink is used to enhance depth and contrast; it helps reduce the amount of colored inks required and improves color fidelity where deep blacks are needed.

CMYK printing is fundamental in commercial printing, including magazines, brochures, packaging, and high-quality photographic reproductions. It allows for color consistency across large print runs and is compatible with various printing techniques such as offset lithography, digital inkjet, and screen printing. Professional printers often use gamma correction, color profiles, and spot colors to fine‑tune the final output. Despite its widespread use, CMYK printing faces challenges such as color gamut limitations, color shifts due to paper absorbency, and the need for careful color management to achieve desired results.