Why do some medication paper boxes have circles or text of CMYK colors printed somewhere on them?

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I have a box of medications for a throat pain and there is a total of five small circles. Four of them are the perfect representation of CMYK colors, so cyan, magenta, yellow and black. The fifth one is a shade of green that’s used for the text on the white paper box. The names of the four CMYK colors are also written on the box in their respective colors.

Not every medication box seems to have these colors. But yesterday I threw away an empty paper box of cough meds, that also had CMYK colored circles printed on it.

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Anonymous 0 Comments

It’s a common feature of packaging for pretty much anything. The packaging is printed only using the colors on the test strip. If any of the colors are *missing* from the little boxes its an indicator that there was an error in the printing and a color was missed or applied incorrectly. For example the “cyan ink cartridge” (or whatever they use) was empty or misaligned or something like that.

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