The flag of Ecuador is a horizontal tricolour with the colours (from the top of the flag to the bottom of the flag) yellow, blue and red. The yellow section takes up the top half of the flag whilst the blue and red sections take up the bottom half of the flag in equal measure. At the centre of the flag is the national arms of Ecuador. The flag of Ecuador is similar to the flag of Colombia (Ecuador seceded from Greater Colombia in 1830 to form a republic) except for the national arms and slightly different proportions. The flag's colours are said to represent crops and fertile soil (yellow), independence from Spain (blue) and courage (red). The flag of Ecuador was officially adopted on 26 September 1860. The flag's ratio is 1:2.