The walls of your home look like they are just painted and there would be no reason why someone would not want to purchase your home because of the colour.
I would suggest you go for re-painting only if there is any chipping or other paint problems are occurring. Just like you aren't sure this colour would sell the new hue in which you would paint your place all over again may also not help. This way you would end up spending more time, energy and money.
Currently it looks amazing!
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