shaded or graduated in tone: said of a color
French past participle of ombrer, to shade ; from Classical Latin umbrare ; from umbra, shade (dictionary.com)
"Thirty seconds after I met Anya Fernald, the co-founder and C.E.O. of Belcampo, a sustainable-meat company whose ambition is to seduce Americans away from industrial food, she offered me a plate of lamb tartare. Fernald is thirty-nine and nearly six feet tall, with growing-out ombré hair and the exuberant energy of a team of wayward ponies; we were sitting at the counter of a butcher shop and restaurant she had recently opened in downtown Los Angeles."