Bright neon greens and electric blues that pop on your screen often print muddy. Brand reds shift orange. Photo blues turn purple. The reason is simple: screens and printers use completely different color systems.
RGB — what your screen does
Red, Green, Blue. Three colored lights mix to create every other color. Black is no light at all. White is all three at full brightness. This is an additive color model.
Used by: phone screens, computer monitors, TVs, projectors, LED signs.
CMYK — what your printer does
Cyan, Magenta, Yellow, Black (Key). Four inks mix on white paper to create colors. White is just the paper showing through. This is a subtractive color model.
Used by: every paper printer in the world, both digital and offset.
Why colors shift in print
RGB can produce many bright, saturated colors that CMYK simply cannot reproduce — especially neon greens, electric blues, deep oranges, and bright reds. When your print shop converts your RGB file to CMYK for printing, those colors shift to the closest CMYK equivalent — which is usually duller.
How to avoid surprises
- Design in CMYK from the start if printing is the primary destination.
- Convert before sending — most design software (Photoshop, Illustrator, InDesign) lets you convert RGB → CMYK with a 'soft proof' showing how it'll look.
- Check brand colors against CMYK — if your brand red is RGB-only, ask your designer for the CMYK or Pantone-matched equivalent.
- Ask for a press proof for important jobs — we can print a single sample sheet for approval before the full run.
- Use Pantone for brand-critical colors — Pantone is a standardized ink color system that prints accurately.
The honest truth
There will always be some shift between screen and print. Even on the best calibrated equipment. The goal is making sure brand-critical colors are within 95–98% of the target. We pre-flight every job at no extra cost and flag anything that'll print very differently from how it looks on screen.