We present a novel single-chip color image sensor with a layered structure of three organic photoconductive films (OPFs), each one sensitive to only one primary color (red, green, or blue). First, we fabricate a red/green component consisting of two OPFs sensitive to red and green colors and transparent readout circuits on a glass substrate for red and green color imaging. Then, we fabricate a blue component consisting of an OPF sensitive to blue color and a transparent readout circuit on another glass substrate for blue color imaging. Finally, we stack the fabricated components in layers. As a result, we obtain color images with 128 × 96 pixels through a shooting experiment of the stacked structure.