Related Clues:

• Deep blue
• Blue
• Part of a rainbow
• Shade of purple
• Shade of blue
• Dark blue
• Blue hue
• Blue shade
• Blue dye
• Part of Roy G. Biv
• Ellington song mood
• Color of Duke Ellington's 'Mood'
• Rainbow color
• Color in an Ellington title
• Herb yielding a blue dye