A color filter substrate and a display device are each capable of reducing color separation of a straight line displayed with a mixed color and particularly color separation of a straight white line displayed with a mixed color on a black background. The color filter substrate is a color filter substrate including colored layers of at least four colors, arrayed inside a pixel region, wherein at least one pair of colored layers that are not next to each other when the colored layers of all the colors are arrayed in order of hue is adjacently arranged to each other inside the pixel region.