Single-plate color imaging element including color filters arranged on pixels

A single-plate color imaging element including color filters in a predetermined color filter array arranged on a plurality of pixels formed by photoelectric conversion elements arranged in horizontal and vertical directions, wherein

• the color filter array includes a predetermined basic array pattern including first filters corresponding to a first color that most contributes to obtaining luminance signals and second filters corresponding to two or more second colors other than the first color, the basic array pattern repeatedly arranged in the horizontal and vertical directions,
• one or more first filters are arranged in all lines in horizontal, vertical, and oblique (NE, NW) directions of the color filter array,
• one or more second filters of each color of the two or more second colors are arranged in all lines in the horizontal and vertical directions of the color filter array in the basic array pattern, and
• a proportion of the number of pixels of the first color corresponding to the first filters is greater than proportions of the numbers of pixels of each color of the second colors corresponding to the second filters,
• wherein there are no pixels between the repeatedly arranged basic array patterns.