Scotch Blue is from the Colour by Nature palette, created in collaboration between Farrow & Ball and the Natural History Museum. It\'s the darkest blue in the Farrow & Ball palette and more intensely coloured than the blue-based black shade Railings, making for eye-catching woodwork or a deeply luxurious wall colour. Try it in Estate Emulsion for a particularly velvety feel.Estate Eggshell is a washable, water based satin finish for interior wood and metal. Its soft low-shine finish brings an understated elegance to trim and furniture and is suitable for doors, kitchen cupboards, radiators, and other wood and metalwork throughout the home.