Oh, I can't do the exercises because I suffer from a visual condition called keratoconus. This condition is gradually taking my eyes off me, so I will surely stop appreciating colors sharply someday. Personally, there are some colors that have smells, like green, blue, yellow or red. My grandmother's house, for example, which is surrounded by many bushes and grasses, always smells of green. As always, fascinating post, @ladyrebecca.