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Why Do My Colors Look Different When Printed: The Ultimate CMYK Guide

CMYK Color Wheel

You spent hours perfecting a design on your screen, but when the box of business cards arrived, the vibrant neon blue looked like a muddy navy. What happened? You fell into the RGB vs. CMYK trap.

What is CMYK?
CMYK stands for Cyan, Magenta, Yellow, and Key (Black). While your computer monitor uses light (RGB) to create colors, a printing press uses physical ink.

Why This Matters for Your Business:
Most design software defaults to RGB because it has a wider color spectrum. However, a printing press cannot physically recreate “electric” greens or “fluorescent” blues.

3 Pro-Tips to Save Your Print Job:

Design in CMYK from Start to Finish: Don’t convert at the last minute. Set your InDesign or Illustrator workspace to CMYK immediately.


The “K” is Key: For crisp, sharp black text, ensure your “Black” is set to $100\% K$, rather than a mix of all four colors, which can lead to “ghosting” or blurry edges.


Check Your “Packaged” Files: If you are packaging an InDesign file, always double-check that your linked images are also converted to CMYK.


Ready for a Perfect Print?
Don’t guess on your colors. At Streeter Printing, we pre-flight every file to ensure your brand colors stay true from screen to paper.

Print with confidence when you trust the San Diego commercial print shop the print buyers trust!

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