1. A color imaging device that is a single-panel type color imaging device comprising: a plurality of pixels that are constituted by photoelectric conversion devices that are arranged in a horizontal direction and a vertical direction; and a color filter of a certain color filter array arranged on the plurality of pixels, wherein the color filter array includes a basic array pattern of N×N (N: odd number of 3 or more), in which a first filter that corresponds to a first color that contributes most to obtaining a brightness signal and second filters that correspond to two or more second colors other than the first color are arranged, and the basic array pattern is continuously repeated in the horizontal direction and the vertical direction to form the color filter array, such that a plurality of the basic array patterns are arranged next to each other along the horizontal and vertical directions in the color filter array, the first filter is arranged on two diagonal lines in the basic array pattern that is repeated in the horizontal direction and the vertical direction in the color filter array, and in the basic array pattern, a ratio of the number of pixels of the first color that corresponds to the first filter is greater than each ratio of the number of pixels of the second colors that correspond to the second filters.