Related Clues:

• Age, in a way
• Neutral color
• Blue's opponent
• Elm, e.g.
• 18th century elegist Thomas
• Dull color
• Type of matter
• Vague
• Battleship shade
• Cloudy
• Rebel color
• Looking like rain
• Ill-defined area
• Lee's uniform color
• Pre-dye hair shade, often