The flag of Norway is a red rectangular field featuring a blue Scandinavian cross outlined in white. This design has influenced the flags of Norway's former territories, including Iceland and the Faroe Islands. Iceland's flag, adopted in its current form in 1915, and the Faroe Islands' flag, officially recognized in 1940, both incorporate the Scandinavian cross and the colors red, white, and blue. However, they differ in the arrangement and shades of these colors compared to the Norwegian flag.

The Norwegian flag is considered the complete opposite of Iceland's flag. While both flags share the same color palette and cross design, the color placement is reversed. In the Icelandic flag, the background is blue, the cross is red, and the outline is white, which is the inverse of the Norwegian flag's color scheme. This inversion creates a visual contrast between the two flags, making them distinct yet connected through their shared heritage and design elements.

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