Related Clues:

• Spectral colour
• It's to dye for
• Deep reddish blue
• Spectrum color between blue and violet
• Shrub yielding an indigo dye
• "Mood ___" (Ellington song)
• Auburn hair dye
• The "I" in ROYGBIV
• Shrub used in dyeing
• ROY G. BIV penultimate
• Decorative tattoo dye
• Blue indigo
• Deep-blue dye or colour
• Dye for nail
• Nail the dye