The visible spectrum -- The white knights -- Red hands -- Ladies and red lights -- Scintillant orange -- Yellow rose -- The yellow sugar: a tale of infamous righteousness and righteous villainy -- The green dress: a pornographic tale -- The blue wallet -- The blue yonder: a tale of cleanliness -- The indigo engineers -- Violet hair: a Heideggerian tragedy -- X-ray visions -- A note on the truth of the tales.