i am facinated by color.
there was (back in 1987 or so) a book written about color and how human eyes see color. some things take their color because of the arraingement of the atoms in the crystals (gems) and chrome come to mind (chrome, in it various salts, will appear green, yellow or red!)

i have a pantone book of colors, its a nice standard for reference. (Pantone is primarily a printers color guide) but many fashion items are referenced with pantone color names and numbers. (my apartment is painted with custom colored paints, using the pantone swatches).

i don't always bother to use color text, but color figures in every other way in my life.

my other obsession