keynote color problem in ipad

No, but I don't have Keynote or a MacBook Pro.

The iPads and the MacBook Airs were given screens from two different suppliers. It has been noted that screens from one supplier were more in the warm red tones and one were more in the cool blue tones. One individual with a MacBook Air went so far as to recalibrate his screen. What you need to do regarding Keynote is a question only you can answer since it is a presentation app and you want others to see what you created. You may need to adjust the color after you're in Keynote, once it's on the iPad.

 

Still seems to be a problem

I just loaded up a file onto the iPad via iCloud and the colours were displayed incorrectly. The slides were all made from a PDF file. They still show correctly on the Mac. See my comparison where I have overlaid the original with the display from the iPad.

Just to check, I manually added boxes with the correct colours on Keynote for Mac and they showed the correct colour on the iPad. So it must be an issue relating to displaying PDF images from within Keynote for iPad.