Flag of Ladonia

Infobox flag
Name = Ladonia
Article =
Nickname = "Glorious Green" [ [http://www.ladonia.net/new_herald/?p=17 announcement about the name "“Glorious Green”" in the "New Herald"] ]

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Use = 111000
Symbol = FIAV|normal
Proportion = 13:21
Adoption = 04 February 2008This is the date of standardization; the flag is actually used in this form since the foundation of the state.] [http://www.ladonia.net/new_herald/?p=901 announcement about the standardization] ]
Design = green with a green cross

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Use2 = 111000
Symbol2 = FIAV|variant
Proportion2 = 13:21
Adoption2 = 04 February 2008
Design2 = green with a green cross
Type = National The flag of Ladonia is a green nordic cross flag. However, it has the unusual feature that this cross is invisible on the official flag since it has the same color as the background. Because of this, a variant with white contours is often used, not least to distinguish the flag from the flag of Libya.

The flag’s color is defined in the sRGB color space as the value #009000 (red: 0, green: 144, blue: 0). The flag is 13 units high and 21 units wide. The cross arms are 3 units broad. The left green “background” fields are square. The horizontal division is thus 5 : 3 : 13, the vertical division 5 : 3 : 5.

The intention behind the ratio (13:21), the unit counts 3, 5, 13 and the green channel value 144 is the use of Fibonacci numbers. An important aspect of this is that the ratio between consecutive Fibonacci numbers approximates the Golden Ratio 0.618… Therefore the proportion Fraction|13|21 = 0.619… is supposed to be of aesthetic value. Similarly, rectangles of the proportions Fraction|8|13 = 0.615…, Fraction|5|8 = 0.625 and Fraction|3|5 = 0.6 can be found in the flag. Besides, squares of side lengths 3, 5, 8 and 13 can be found.

Ladonia also has a naval flag. It is essentially white with a green cross, with several additional features. [ [http://www.ladonia.net/new_herald/?p=250 article about the naval flag] ]

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