From Longman Dictionary of Contemporary Englishdusty blue/pink etcdusty blue/pink etcCCBRIGHTblue etc that is not bright but is slightly grey The curtains had faded to a dusty pink. → dusty
Examples from the Corpus
dusty blue/pink etc• The rising sun slowly turns the drab greys and dull browns of the mountains to patches of pale gold and dusty pinks. 