meet the 9 new shades in the essie serene slates nail polish collection: 'generation zen', mauve taupe gray; 'mind-full meditation', apricot beige-nude; 'cause & reflect', pearlized indigo blue; 'press pause', light gray with a cloudy blue tint; 'toned down', steel gray cream with smoky cobalt undertones; 'wire-less is more', dusky rose quartz-pink; 'gadget-free', gunmetal gray with metallic sheen; 'serene slate', stone-nickle gray; and 'on mute', hushed charcoal gray.