It’s a frustrating scenario many marketers face: you design a vibrant, neon-blue digital flyer on your screen, but when the printed box arrives, the colours look dull, muted, or completely different.
This isn’t a printing error – it’s a fundamental science issue involving colour profiles. Understanding the difference between RGB and CMYK is the secret to achieving consistent branding across all mediums.
What is RGB? (For Digital Screens)
RGB stands for Red, Green, and Blue. This colour model is used exclusively by digital devices like computer monitors, smartphones, and TVs.
- Screens use additive light to create colours. When you mix red, green, and blue light together at full intensity, you get pure white.
- Because screens are backlit, they can display incredibly bright, vibrant, and fluorescent hues that physically cannot be replicated with ink.
What is CMYK? (For Physical Print)
CMYK stands for Cyan, Magenta, Yellow, and Key (Black). This is the standard colour model used in modern digital and lithographic printing, including the machinery we use at Sherwood Universal.
- Printers use subtractive ink to create colours. When you mix cyan, magenta, and yellow ink together, they absorb light, creating a dark muddy brown – which is why black ink (K) is added to give depth and crispness.
- Because paper reflects ambient light rather than emitting its own, the colour spectrum (gamut) is narrower than a digital screen.
How to Fix the Colour Disconnect
To ensure what you see on your screen matches what comes off our printing presses in Nottingham, follow these three steps:
- Switch Your Workspace: Before you start designing in Adobe Illustrator, Photoshop, or InDesign, change your document’s colour mode from RGB to CMYK.
- Beware of Neon: Avoid using highly saturated neon greens, electric blues, and bright pinks, as these will naturally dull down when converted to ink.
Ask for a Physical Proof: If colour accuracy is mission-critical for your brand, skip the digital proof. Ask our team for a physical print proof on your chosen paper stock before running the full order.
Don’t forget that our expert Team are here to help…so if you have any questions or queries, please drop us a message.