Rare Colors

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Across
  1. 4. Deep cobalt blue.
  2. 7. Dusty blue-green/gray.
  3. 10. Muted green-gray.
  4. 11. Pale icy blue.
  5. 12. Glassy blue pigment.
  6. 13. Neon Purplish pink.
  7. 14. Dark royal purple.
  8. 15. Emerald green.
  9. 16. Vivid red-orange.
  10. 17. Soft greenish blue.
  11. 18. Deep teal.
Down
  1. 1. Intense yellow pigment.
  2. 2. Brownish-yellow.
  3. 3. Ivory-white.
  4. 5. Dark Earthly red.
  5. 6. Pale gray-yellow.
  6. 8. Purplish red that "never fades."
  7. 9. Brownish-purple (literally "dead head").