RGB vs CMYK: What’s the Difference (and Why Your Stickers Look Different in Print)

Ever designed something on your screen that looked perfect… then printed it and thought “why does this look different?”

Yeah — that’s RGB vs CMYK.

It’s one of the biggest reasons your stickers might not turn out how you expected. Let’s break it down without the tech headache. If you’re creating custom stickers, understanding colour formats helps ensure your final print looks exactly how you expect.

What is RGB?

RGB stands for Red, Green, Blue, it’s how screens display colour.

• Phones

• Laptops

• Tablets

👉 RGB = light-based colour
👉 Brighter, more vibrant colours

That neon green you love? That’s RGB doing its thing.

When to use RGB?

 Use RGB for anything digital

• Social media posts (Instagram, TikTok, ads)

• Website graphics & banners

• Digital artwork

• Email marketing visuals

• App or UI design

What is the best format for RGB? JPG, PNG, GIF and PSD files.

What is CMYK?

CMYK stands for Cyan, Magenta, Yellow, Black, used in printing.

👉 CMYK = ink-based colour
👉 Slightly more muted tones

Printers physically layer ink, so colours can’t glow the same way screens do.

When to use CMYK?

Use CMYK when your design is going to be printed.

• Stickers

• Posters

• Business Cards

• Flyers / Brochures

• Signs

What is the best format for CMYK? PDF, AI and ESP files.

Why your sticker colours change

When you upload a design in RGB, it gets converted to CMYK for printing.

That’s when:

• super bright colours dull down

• neons lose punch

• contrast shifts slightly

It’s normal — but knowing this = better results.

How to get the best sticker colours

• Design in CMYK if possible

• Avoid super neon colours

• Increase contrast slightly

• Use high-quality files

Or… just let us handle it.

At Peeler Stickers, we optimise your design for print so it still hits the way it should.

What’s the difference between CMYK and RGB?
RGB is used for digital screens and produces brighter colours, while CMYK is used for printing and creates slightly more muted tones using ink.