I have created business card design in photoshop and used RGB for making a design, but i know that most of the printers and stores for printing use CMYK for printing. In few cases when it was digital printing instead of plotter printers the stores told me they can print RGB without changing color.
But anyway when i finished my design i converted it to cmyk to check the difference and see if something needs change before printing. So everything was fine and in my print design there is a main logo with font which something like green-yellow-ish color and its color combination was a bit gradient and in photoshop it shows like this:
From the top of the font
C: 25% M: 0% Y: 100% K: 0%
To the bottom of the font like this:
C: 32% M: 0% Y: 100% K: 0%
I know that this gradient wouldn't be so visible on the business card. But in every variations i tried this should be the yelow-ish color.
When i got a business cards from the printing company they turned out as a green not yelow but whatever i tried the green color i got from printing, that should be like
C: 60% M: 0% Y: 100% K: 0%
So why would be the color combination i used with 30% cyan turns out as a green on printing except the person from printing company messed up something?
Is it possible that yellow-ish color prints out as a green for some reason?