A colleague and I both have identical iMacs with identical external Dell monitors. Our iMac monitors look about the same, but he's got his color on the Dell looking perfect and I can't seem to get mine to match it. Is there a way to just export the color profile on his side and import it over on my side?
You'll find the color profiles in
/Library/ColorSync/Profiles/Displays/. Just copy them to the other machine, same directory, and select in System Preferences » Displays » Color. Make sure to deselect Show profiles for this display only.
I calibrated my Dell display using SuperCal and its color profile was stored in my home directory in