Brightness, clearness, colorfulness, etc.

Wow, thanks a lot! :D It's more clear now.

It mean 鮮やかさに　clear I thing if so you make sencethe poem 　　　　　　　　　　　　 声 = memory　焼け付く　（remain or record) 愚かさよ＝　It is foolish means " 焼けつく声　＝　recorded memory / 偽り翳すは= cheat somebody ( attention this is poem) 然されど　＝しかし　孤独を重ねた＝Long time have been alone 残骸　≒　broken body/parts 虚しき雨　≒　hopeless rain

Thanks a lot! But I'm confused as to how that would make sense since the sentence in which I heard it in was "鮮やかさに焼け付く声偽り翳す愚かさよ 然れど孤独を重ねた残骸は虚しき雨". It's from a song.

If you use in color this is clear and bright color(s) as like picture of Monet. If you use in act/controls it will be skilful act/control or execellent act/control. as the act like gold medalist