I think its hard to tell what the court really looks like from these pictures. The blue looks different shades in each shot because of instagram filters, or poor quality of certain cell phone cameras, or a glare on the court from the camera angle. Even the inside the arc area looked white in some pictures.
If we could get a professional shot from the normal vantage point of a television camera, I think we could see how the actual court looks. I think this photo from JGibs' links is probably the most color accurate out of all the shots:
The blue in that photo most closely resembles the actual blue found on the jerseys. But then again, I could be dead wrong and it really is that weird, tealish, swimming pool water blue: