Of something having a color that is a light shiny blue(adjective)
WordNet. Princeton University. 2010.
Use "silvery-blue" in a sentence
"There it was in all its long-necked, silvery-blue glory, looking across the water at me, taking in my pain with patience and stillness."
"James opened his hands, and the sword dissipated into a cloud of silvery-blue effervescence that sank into his body."
"Nature appears violent when viewed in this tormented state: "Above the inky expanse of lawn, the moon was a silvery-blue discus that seemed to have been thrown at great speed through scudding masses of black cloud.""