The least attractive colour as determined سے طرف کی science? This terrible shade of drab green-brown. So much so that it's been put on all cigarette packages in Australia so as to make the prospect of smoking seem even مزید gross.
Personally I really dislike neon colours. There was a phase in primary school where neon yellow/pink/green tracky pants were all the rage and people's legs were just blights on the landscape.
گلابی is my least پسندیدہ color. I like it on some things, but I'm not crazy about it. In fact, I never ever wear pink. I don't even own anything that's pink, except for a plastic flamingo.