Color Opposites

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Across
  1. 3. Opposite of blue
  2. 4. Opposite of blue green, maybe
  3. 6. Opposite of yellow green
Down
  1. 1. Opposite of brown, maybe
  2. 2. Opposite of yellow
  3. 5. Opposite of red
  4. 6. Opposite of dark green, maybe
  5. 7. Opposite of green