What colors work well on darker skin tones?
Black, red, orange, deep pinks, greens work well on darker skin tones. White can be used, but appears more yellow. White, on any skin tone, is best used only for highlights and blending, since it tends to hold unevenly. Blues can look green, since with darker skin, the first layer grows back over the tattoo, which is deposited in the second layer. The first layer of skin contains your natural pigments, so darker skin will cover the tattoo with a yellowish layer, like smoked glass.