A color filter is provided with red, green and blue color filter segments. When chromaticity coordinates (x, y) in a chromaticity diagram of XYZ color specification system are measured with the color filter being sandwiched between two polarizers, a chromaticity (x.sub.p, y.sub.p) of parallel-transmitted light and a chromaticity (x.sub.c, y.sub.c) of orthogonal-transmitted light satisfy the following formula (1): .DELTA.xy=[(x.sub.p-x.sub.c).sup.2+(y.sub.p-y.sub.c).sup.2].sup.1/2<0.- 130 (1) A liquid crystal display device is provided with such a color filter.