But surely, speaking carefully, we do not sense 'red' and 'blue' any more than 'resemblance' (or 'qualities' any more than 'relations'): we sense something of which we might say, if we wished to talk about it, that 'this is red.'
"Philosophical Papers" by J. L. Austin, James Opie Urmson, Geoffrey James Warnock, 3rd ed., New York: Oxford, (p. 49), 1979.