noun
jade green
Refers to the green color of jade (翡翠). Used as a noun or with の to describe something of that color.
彼女は翡翠色のドレスを着ていた。
She was wearing a jade green dress.
この翡翠色の石はとても美しい。
This jade green stone is very beautiful.
緑 is the general word for green, whereas 翡翠色 is a specific shade of green like jade.
Compound of 翡翠 (ひすい, 'jade') + 色 (いろ, 'color').