Coat of arms The coat of arms was granted on 19 November 1907, just after Horten was designated as a kjøpstad, giving it town privileges. The blazon is "Per bend azure a fortress and boat on water and argent a rose". This means the arms are divided with a diagonal line. The field (background) below the line shows a naval fort with a boat on the water. Above the line, there is a red rose and the field has a tincture of argent which means it is commonly colored white, but if it is made out of metal, then silver is used. The arms use the old "English"-style of shield with a mural crown sits on top signifying that the municipality contains a city. The design shows the importance of the Karljohansvern naval base and the gardens of the city. The arms were designed by Andreas Bloch. The municipal flag is white with the coat of arms in the centre.
Coat of arms The coat of arms was granted on 19 November 1907 just after Horten was designated as a kjøpstad, giving it town privileges. The blazon is "Per bend azure a fortress and boat on water and argent a rose". This means the arms are divided with a diagonal line. The field (background) below the line shows a naval fort with a boat on the water. Above the line, there is a red rose and the field has a tincture of argent which means it is commonly colored white, but if it is made out of metal, then silver is used. The arms use the old "English"-style of shield with a mural crown sits on top signifying that the municipality contains a city. The design shows the importance of the Karljohansvern naval base and the gardens of the city. The arms were designed by Andreas Bloch. The municipal flag is white with the coat of arms in the centre.