Extracting hair color from JSON array
hairColor is an array, so you have to specify which element you want.
string x = myObj.faceAttributes.hair.hairColor[0].color;
If you have a look at the class structure, you will see that Hair contains a List of Hair Colour. The debug message is also telling you the same thing; that you are calling ToString() on a List.
Instead the correct approach would be to print out each of the Hair colours, either separately or as a comma separated value. Without knowing exactly how you want to output/use the hair colour(s) try one of the approaches below.
Comma Separated: This will produce a string of comma separated hair colours
string x = string.Join(",", myObj.faceAttributes.hair.hairColor);For Each:
foreach (string x in myObj.faceAttributes.hair.hairColor){ System.Out.WriteLine(x); // Or whatever else you would like to do with this.}