The RGB Color Model And Why It's Not Used In Printing & Packaging

The world of color printing can be pretty confusing, especially regarding the difference between RGB and CMYK. If you're not a printing expert, you might wonder why your design files look different when you print them out at home or a professional printing company. Keep reading to learn more about RGB and CMYK and why CMYK is the preferred printing method for most packaging and marketing materials.

The Difference Between RGB & CMYK Colors

RGB stands for red, green, and blue. These are the three primary light colors used to create all other colors. All digital devices use an RGB color model because it produces bright, vibrant colors that look great on screens. CMYK stands for cyan, magenta, yellow, and black. These four ink colors are used in most commercial printing processes. When combined in different proportions, these colors can produce a wide range of colors. However, because CMYK colors are created with ink instead of light, they cannot match the bright vibrancy of RGB colors.
Source: The RGB color model mapped to a cube. The horizontal x-axis as red values increasing to the left, y-axis as blue increasing to the lower right and the vertical z-axis as green increasing towards the top. The origin, black is the vertex hidden from view.

Why CMYK Is the Preferred Printing Method for Most Materials

While RGB colors look great on screens, they don't translate well to printed materials. That's because home printers and commercial printers use different color models – home printers typically use an RGB color model, while commercial printers use a CMYK color model. As a result, any image printed using an RGB color model will usually look dull and flat. If you're designing packaging or marketing materials that will be printed commercially, it's important to design your files using a CMYK color model. This will ensure that your colors print accurately and look consistent from one print run to the next.
Source: Wikipedia: Color printing typically uses ink of four colors: cyan, magenta, yellow, and black.

Can I Convert RGB Colors To CMYK?

Yes, you can convert RGB colors to CMYK. However, it's important to note that this conversion process could be better. Some colors may print accurately, while others may not. This is because the two color models use different color gamuts or ranges of colors. As a result, some RGB colors may fall outside the CMYK color gamut and cannot be accurately reproduced using CMYK inks. When in doubt, designing your files using a CMYK color model is always best. This will ensure that your colors print as intended and avoid unwanted surprises.
Source: Wikipedia: This diagram shows three examples of color halftoning with CMYK separations, as well as the combined halftone pattern and how the human eye would observe the combined halftone pattern from a sufficient distance.

What if I Need to Print in RGB?

Sometimes, you may need to print your design using an RGB color model. This is typically only necessary when printing photographs or other images that contain a large number of colors. If you need to print in RGB, convert your CMYK colors to RGB before sending your file to the printer. This will help ensure that your colors print accurately and avoid color shifting.

Conclusion:

The world of color printing can be pretty confusing, especially regarding the difference between RGB and CMYK. If you're not a printing expert, you might wonder why your design files look different when you print them out at home or a professional printing company. Keep reading to learn more about RGB and CMYK and why CMYK is the preferred printing method for most packaging and marketing materials.

Share this story

"Share on Facebook"

Most Popular

Most Recent

Keep in touch

Get design inspiration, business tips and special offers straight to your inbox with our cefBox's letter, out every two weeks.