I agree, the sky is quite blue, perhaps a polarizing filter. If the sky is bluer, than other blues in the picture may be "bluer" also. While I originally picked this color for my reservation, I changed to rapid red later. If this was a "brighter" blue then I would have stayed with blue. YMMV Perhaps next year the color choices will be better.Interesting find but the IG filters make it difficult to get a real impression of the color.