Provided is a highly-sensitive color image-capture element and an image capture device that can be simply manufactured, have little polarization dependency, and have micro-spectroscopic elements capable of separating incident light into three wavelength ranges integrated facing a two-dimensional pixel array. An image capture element 100 has a transparent layer 111 having a low refractive index made of SiO2 or the like and a plurality of micro-lenses 103 laminated on a two-dimensional pixel array in which pixels 102 each including a photoelectric conversion element are disposed in an array. Inside the transparent layer 111 having the low refractive index, micro-spectroscopic elements 101 composed of a plurality of microstructures having constant thickness (length in a direction perpendicular to the two-dimensional pixel array) formed of a material such as SiN having a higher refractive index than that of the transparent layer 111 is embedded.