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Full Idea
'Blue' is vague by some standards, for it has borderline cases, but that does not make it a family resemblance term, for all the shades of blue resemble each other in some respect.
Gist of Idea
'Blue' is not a family resemblance, because all the blues resemble in some respect
Source
Timothy Williamson (Vagueness [1994], 3.3)
Book Ref
Williamson,Timothy: 'Vagueness' [Routledge 1996], p.88
A Reaction
Presumably the point of family resemblance is that fringe members as still linked to the family, despite having lost the main features. A bit of essentialism seems needed here.
| 4141 | Various games have a 'family resemblance', as their similarities overlap and criss-cross [Wittgenstein] |
| 3176 | Anything bears a family resemblance to a game, but obviously not anything counts as one [Rey] |
| 21600 | 'Blue' is not a family resemblance, because all the blues resemble in some respect [Williamson] |
| 22336 | We might say that the family resemblance is just a consequence of meaning-as-use [Glock] |
| 22335 | The variety of uses of 'game' may be that it has several meanings, and isn't a single concept [Glock] |