no she did not color her house blue.
you have no sauce on her coloring her house blue, you have a photo shopped image of a random house.
more of the false picture of a house that is said to be Oprah's house (or is it?) as if she 'colored her house blue' but that's just a picture of some house, not necessarily hers, that has been colorized to be all blue and is obviously a fake image.
what you are doing is incorrect and slanderous.
https://www.oprah.com/home/oprahs-hawaiian-home/all
Not hard to find a picture of oprah's Hawaiian house at oprah.com.
notice it's not blue.