There could be a couple of reasons why you see a bluish caste.
* Photoshop uses it's own color space conversion when you convert images from RGB to CMYK. A better solution is to keep the image in RGB space, which allows ColorSync to use the input and output device profiles for conversion when printing an image.
* Components of the file are based on a different monitor profile. In other words, some of the images in the file may have been imported from another file that had a different input profile. If this is the case, the colors are not being mapped properly. The images should be imported using the current environment profiles, and then printed using ColorSync Color Matching.