How to associate color with accuracy for segmented gauge?

I'm writing a personality test app and am thinking of a way to implement the UI for recording answers. The test requires the user to answer how accurately terms like "kind" or "cold" describe their personality, using the following scale:

  • 1 - Extremely Inaccurate
  • 2 - Very Inaccurate
  • 3 - Moderately Inaccurate
  • 4 - Slightly inaccurate
  • 5 - Neither accurate nor inaccurate
  • 6 - Slightly accurate
  • 7 - Moderately accurate
  • 8 - Very accurate
  • 9 - Extremely accurate

I want to simplify the process of recording answers using a gauge, but there's not enough space to provide description of all answers. So I'm thinking of using a color-coded gauge with 2 poles - not accurate and accurate.

How can I use color gradation to indicate that one side of the gauge is accurate while the other is extremely inaccurate?

Is there a better way to condense the above 9 point answer scale into a color coded gauge?

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