What I found to be the simplest and best solution for me was to directly use the Color class as follows:
int red = Color.red(intColor);
int green = Color.green(intColor);
int blue = Color.blue(intColor);
int alpha = Color.alpha(intColor);
This way I could already deal with the integer values without having to handle strings. If on the other hand the string representing the rgb color is what you need, Pankaj Kumar's answer is the best. I hope this is useful to someone.
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