Clue: Pale-blue hue

Answer: CIEL

Length: 4

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Similar Clues:

• Blue hues (e.g. AZURES with 6 letters)
• "Pale Blue Dot" author (SAGAN with 5 letters)
• Pale blue hue (CIEL with 4 letters)
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• Pale blue (CIEL with 4 letters)
• Pale shade of blue (ETAIN with 5 letters)
• ___ blue (pale hue) (ETAIN with 5 letters)
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• Pale-blue gas (OZONE with 5 letters)