It can be dark or light green. Their tails are grey with dark bands. It is similar to the concept of light and dark. He appears in both dark and lighter shades. Plants that are pale simply from being in the dark are termed etiolated. The body is tan in color with dark flecks. The woods are thick and dark and impenetrable. New York is gloomy, dark and cold. It's very dark and gothic, but really wildly funny. A little bit dark, but very intelligent. Figurines that glow in the dark are phosphorescent. It is more noticeable in people with dark skin. The constituents of cold dark matter are unknown. Everyone in dark colors, everyone dressed somberly. A celebration of everything dark and nasty.