Coloured hat
In Tibetan Buddhist cultures, coloured hats are sometimes used to symbolise attitudes towards various different abstract concepts. Several sects are distinguished by the colour of their hats:
- Yellow Hat - the Gelug sect
- Red Hat - the Nyingma, Sakya, and Kagyu sects
- Black Hat - the Karma Kagyu sect
In computing slang, hackers and crackers are identified according to their intentions.
- White hat hacker, who hacks for beneficial purposes
- Black hat hacker, who hacks for malevolent purposes
- Grey hat hacker, who hacks with ambiguous ethics
Also in computing is a business company called Red Hat.
In the educational theories of Edward de Bono, six coloured hats represent six thinking states.
- White hat – Facts & Information
- Red hat – Feelings & Emotions
- Black hat – Critical Judgement
- Yellow hat – Positive
- Green hat – New Ideas
- Blue hat – The Big Picture
In Chinese culture, a green hat symbolises a cuckold. This issue is addressed in the movie, Green Hat.
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