I don't know that I've ever seen a cool color palette as perfect as the key lime and periwinkle pairing in this living room by Cobbold Du Pont Interiors. The yellowish green is a color I've long adored — in fact I painted the walls of my old studio the same shade. But never in my wildest dreams would I have thought to pair it with periwinkle. The large-scale area rug brings in most of that purplish blue hue, and it's oh-so-smartly toned down with soft slate gray velvet upholstery. I love how the dark periwinkle and grays anchor the lightness of the lime.
To recreate this palette in a room in your home, begin by painting your walls Benjamin Moore's Wales Green 2028-50. In the daylight, the color has a tart green shade, and in dim light it bears a more yellowish hue.
Find a rug or fabric that brings in the blues. Then, accessorize and furnish your home with some of these finds: