CMYK vs RGB: the key difference that affects your print
In the design and printing process, choosing the right colour model is essential. Two models are most commonly used: CMYK and RGB, but they work on different principles and serve different purposes.
What is CMYK?
CMYK (Cyan, Magenta, Yellow, Key/Black) is the standard colour model used in professional printing.
In this model, colours are created by combining different percentages of the four inks (from 0% to 100%). When these inks are applied and overlaid, they can produce a wide range of colours.
As the inks are mixed, light is absorbed, which is why this system is called a subtractive colour model.
Uses of CMYK:
- Offset printing
- Digital printing
- Screen printing
- Packaging, labels, brochures and other printed materials
CMYK is designed for physically applying ink to a surface, which makes it ideal for all types of print.
What is RGB?
RGB (Red, Green, Blue) is a light-based colour model.
These three colours are called additive colours, because combining them at different intensities creates all other colours. When red, green and blue light are mixed in different amounts, almost every visible colour can be produced.
This model works by emitting light, not by applying ink.
Uses of RGB:
- Computer monitors
- Televisions
- Smartphones
- Cameras and digital devices
RGB is designed for displaying colours on screens, where colours are created with light.
The main difference
The most important difference between CMYK and RGB is how colours are created:
- CMYK → ink → print
- RGB → light → screens
Because of this difference, the colours you see on screen (RGB) often look different once printed (CMYK).
Why does this matter?
If a design is prepared in RGB but printed in CMYK, this can lead to:
- shifts in shades
- loss of intensity
- a final appearance that differs from what was expected
Conclusion
Understanding the difference between CMYK and RGB is key to achieving a high-quality final product. Choosing the right colour model ensures colour accuracy, consistency and a professional look for your printed material.
📩 Need help?
At Propoint, we help you prepare your design correctly for print, so that you achieve a high-quality end result.
👉 Contact us for advice or a quote.
