DescriptionMap of United States accessible colors shown.svg
English: A map of the United States showing four colors. According to the Four color theorem, only four colors are needed to complete a map containing any type of shapes provided that two touching shapes share a border of at least two points (a line).
This colouring is not the only way to four-colour the map: for example, Florida could be orange.
This graphic uses a colour palette accessible to colour blind people.
Modifications: recoloured for colour-blind accessibility, made all borders black, as different border types are irrelevant to the four-colour theorem being illustrated.
This image relies, or partly relies, on colours convey information. The colors used have been chosen to remain visually distinct even to viewers with colour blindness. When modifying this image, make sure that the result remains accessible to colour-blind users.
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