Ideal Culture is the Culture that a particular group holds as morally or ethically desirable. Ideal culture is culture that we "talk about." For example, many individuals view green values as desirable and often talk about the 3 Rs (i.e. reduce, reuse, recycle), but not all people implement this in actual behaviour.
Ideal culture may be distinguished from Real Culture which are cultural normal and values that are actually implemented in behavior.
There may be contradictions between ideal culture and real culture. Canadians, for example, view themselves as peaceful (ideal culture) yet they are involved in armed conflicts and occupations (real culture).