In a custom color from two CND polishes, Bloodline and Dark Ruby, designer Jason Wu shows InStyle how brown and black can be paired fashionably. People often avoid combining the two shades in their wardrobes, but paired with gold or textures like leather and wool, the duo makes a beautiful blend. In this manicure the two reds are combined on the talon-shaped nails with CND’s Gold Chrome for something a little sexier.