By default PostPilot uses the RGB color space in our color picker. RGB was created for colors on the monitor screens which use pixels. 

Some RGB colors that are displayed on a monitor cannot be printed on paper -- mostly really bright greens, blues and pinks. That's why in printing, the CMYK color space is used.

Below you can see the color spectrums of both RGB and CMYK:

If you prefer, we make it easy to work directly in the CMYK color space if you need to. 

When you view a proof of your design, you'll see an accurate representation of how your design will print.

If you want to really geek out on color spaces, check out Wikipedia here.

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