Gamut! Why Sky Blue Prints Purple On Press
I’m sure everyone has seen it before: highly saturated digital photography (RGB image), however the sky blue prints purple on press. The resulting color is a product of the color gamut your commercial printer prints to or the profile of your inkjet printer.
The rich, blue hue of the sky looks very surreal on screen because of a polarizing filter or just using a wide color gamut such as Adobe RGB. However, when these rich images get converted into a smaller CMYK color gamut, such as SWOP, the rich blue prints purple because those colors are not available in this particular CMYK gamut.
A better solution is to work with a commercial printer that prints to a higher standard CMYK color gamut. HiDefColor.com prints to the GRACoL color standard, which contains more shades of blue for the rich RGB image to get converted into, especially Adobe RGB.
Below is a comparison of the two CMYK color gamuts – SWOP and GRACoL:
Always be aware you have choices when choosing a commercial printer.
Has this happened to you? What did your printer tell you was the problem? Please leave your comments below…