Isaac Newton first identified the phenomena of light and chroma known as spectral color that London studio Ama transforms from an abstract concept into a gorgeously tactile object. Newton’s 17th century notion, still ever-present on computer screens, translates as a richly hued blanket made of superfine Italian merino wool. Woven in the traditional method on jacquard looms in one of Scotland’s oldest mills, it’s an heirloom-quality piece to cherish in the home or lavish as a gift.