Differences between RGB and CMYK in professional printing

rgb and cmyk colours

When printing a graphic project, print quality is essential. That is why understanding the difference between RGB and CMYK colour modes is key. Designers, photographers and brand managers know that every detail in the print production process must be carefully managed to achieve the desired result.

When creating a document intended for printing, it is important to consider that the colours used on screen (digital colours) are not the same as those used in print. As a result, there may be slight differences between what you see on screen and the final printed output.

For this reason:

  • It is essential to prepare print-ready files using CMYK colour mode
  • Request colour proofs
  • Carry out print checks before final production

Below, we explain what RGB and CMYK colour models are and their main differences.

What is RGB?

RGB is the colour model used for displaying images on screens such as computers, televisions and mobile devices. It is based on additive colour synthesis (light-based colours). The colour spectrum it can reproduce is very wide and is created by combining light from the primary colours: red (R), green (G) and blue (B).

What is CMYK?

CMYK is the colour model used in print production. It is based on four inks: cyan (C), magenta (M), yellow (Y) and black (K). These colours are combined in different percentages to reproduce a wide range of colours.This model works through subtractive colour synthesis, meaning it absorbs and reflects light from printed surfaces.

For example, when we see the colour blue in the sea, it is because the water absorbs all colours except blue. CMYK is the model used in printing and colour photography.

Differences between RGB and CMYK

In the RGB colour model, a wider range of colours can be reproduced. These colours appear brighter and more vivid due to light emission.

In the CMYK model, some colours cannot be reproduced exactly. When comparing the same image in RGB and CMYK, the CMYK version typically shows lower brightness but greater contrast, partly due to the use of black ink.

In printed materials, RGB colours cannot be reproduced directly. Therefore, images created for screens must be converted to CMYK (print ink colours) to ensure the most accurate possible result in print production.

At Artyplan, our Customer Service team includes experienced professionals in the print production sector. We support your business throughout the entire process to ensure your project achieves the expected result.

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