I have a strange issue in Illustrator where my colours all look off. It's not an RGB/CMYK thing I know how that works, and it's not a screen or monitor thing as the same colours look fine in Photoshop and as PDFs etc.
Also as you can see on the attached screen shot the blue in the colour tab on the right, is the colour I've selected for the font colour, but for some reason it displaying as a more purple, you can see it's not the screen calibratin though as the 100% blue looks right in the colour tab.