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Preventing blue from turning purple

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Independence day is just a few days away, and all across America we'll be celebrating the red white and blue of the American flag. So here's a printing tip to make sure that blue on the American flag doesn't look purple.


Whether you're printing business marketing material like business cards, brochures and booklets or wide format graphics like banners and trade show displays, having your blues print a true blue is very important. In four color printing, blue is created by mixing two of the four colors, Cyan and Magenta. To prevent a color that looks blue on your screen from looking purple on the printed sheet, it's important to keep the Cyan and Magenta values at least 30 points apart. For instance a blue that has the color values Cyan - 100, Magenta 70, Yellow 10, Black 10 will appear as a real blue when printed. However, if the values were Cyan 100, Magenta 100, Yellow 10, Black 10, then the printed color could look more purple than blue, even if it appears blue on your computer screen.


Happy 4th of July and may your blues always stay blue!

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