What Is CMYK vs RGB? – The Ultimate Guide for Print Designs

What Does CMYK Mean?

CMYK stands for Cyan, Magenta, Yellow, and Key (Black). This is the standard colour model for printing, especially used in:

• Custom printed boxes

• Flyers and brochures

• Product labels

• Business cards

Why Use CMYK for Print?

CMYK is a subtractive colour model — ink is layered on white paper, and light is absorbed (subtracted) to create colours. It allows for more colour accuracy in physical printing, especially for packaging boxes.

Keyword tip: CMYK is essential for all print-ready designs.

What Does RGB Mean?

RGB stands for Red, Green, and Blue. It’s used for digital screens like:

• Websites

• Social media graphics

• Phone and computer displays

Why RGB Doesn’t Work for Print

RGB is an additive colour model, based on light. When RGB files are sent to print, they often appear duller or inaccurately coloured compared to your screen, unless converted.

Mistake Alert: Designing your custom packaging artwork in RGB may result in colour shifts during printing.

RGB to CMYK Conversion – Why It Matters

Before sending your artwork to print, always convert RGB to CMYK. This ensures:

• Better colour accuracy

• No surprises during final production

• Professional print results

How to Convert RGB to CMYK:

• In Adobe Illustrator / Photoshop: Go to Edit > Convert to Profile > CMYK

• Use free online tools if you don’t have design software

• Request help from your packaging supplier (like us — we offer free file setup support)

CMYK vs RGB: Quick Comparison Table

Pro Tips for Print-Ready Packaging Designs

• Always design in CMYK from the beginning

• Use high-resolution images (300 DPI) for best results

• Ask your printer for a proof or mockup before mass production

• Don’t forget to include bleed and safe zones