Mail crashes on attempts to display message contents in Mavericks When I click or double click on any message in the messages list on any account in Mail in Mavericks (10.9), Mail crashes immediately with the error

Application Specific Information: 
   *** Terminating app due to uncaught exception 'NSInvalidArgumentException', 
reason: 
   '*** -redComponent not valid for the NSColor NSCalibratedWhiteColorSpace 0 1; need to first convert colorspace.'
abort() called
terminating with uncaught exception of type NSException


What can I do to prevent this crash? I can't read any of my mail!
Open Terminal.app (under /Applications/Utilities) and run

defaults delete com.apple.mail ColorQuoterColorList