An endoscope device includes: a light source that emits white illumination light including rays of light of red, green, and blue wavelength bands, or emits narrow band illumination light having narrow band light included in each of the blue and green wavelength bands； an image sensor that has pixels arranged in a matrix pattern and performs photoelectric conversion on light received by each pixel to generate an electric signal； and a color filter having filter units arranged on a light receiving surface of the image sensor, each of the filter units being formed of blue filters for transmitting the light of the blue wavelength band, green filters for transmitting the light of the green wavelength band, and red filters for transmitting the light of the red wavelength band, the number of the blue filters and the number of the green filters being larger than the number of the red filters.
