Dark blue is a color that can be described in many different ways. The crossword solutions for the term DARK BLUE include PERSE (5 letters), CYAN (4 letters), ANIL (4 letters), NAVY (4 letters), INDIGO (6 letters), and COBALT (6 letters). PERSE is a deep, dark blue color, while CYAN is a bright, light blue color. ANIL is a deep, dark blue-violet color, and NAVY is a dark shade of blue. INDIGO is a deep, dark blue-violet color, and COBALT is a deep, dark blue-green color.