Color (n.) could conceivably be differentiated based on luster, such that shiny black and matt black would different color names.
Color (n.) is a stimulus to philosophizing: a riddle that stimulates rather than exasperates — perhaps the source of Goethe's passion.
Color (n.) has no common essence apart from the game: asked what light blue and dark blue share, answer 'I don't know what game you are playing.'
Color (n.) is grouped by culture: where patricians wear red and green and plebeians blue and yellow, red and green share being patrician; where light blue is Cambridge and dark blue Oxford, the two share nothing.
Color (n.) that I see seems to be its own description.
Color (n.) would not first be noticed when it changed; we cannot say a thing turned out to have a colour as a coating turns out to have been there.
Color (n.) words could not be taught in a country where the atmosphere kept changing every colour — grass green one moment, red the next.
Color (n.) might play other roles elsewhere: tied to shapes, impossible to dye, linked with a foul smell, or always in rainbow order.
Color (n.) concepts depend on agreement: people who differed widely in colour statements would simply not be playing our colour language-game.
Color (n.) matters differently to different peoples: with one word for leaf-colour, split only by 'sharp' and 'blunt', they see red and green fine; the difference just matters less.
Color (n.) has a language-game marked by what we can and cannot do: red is not a mixed colour, there is no reddish green.
Color (n.) as a concept depends on human agreement about the colours of things; without it our concept would not exist.
Color (n.) and space saturate and permeate one another, with no relation of being situated between them; together they make the visual field.
Color (n.) has no accepted criterion except being one of our colours, so others' unusual colour words need not show they see new colours.
Color (n.) has a logic that achieves what people wrongly expected of a physiological or psychological theory.
Color (n.) has a character only with one particular use in mind; a bloodshot eye's colour might suit a wall-hanging.
Color (n.) need not exclude black and white; a wallpaper of red, blue, black and white squares is not split into coloured and uncoloured parts.
Color (n.) described in a book uses the concepts of the sighted, which raises for whom such a description is meant.
A Color (n.) can be named without being copied exactly: one sees a reddish place without mixing its match.