The color name of hex code #645E71 is Granite Gray. The RGB values are (100, 94, 113) which means it is composed of 33% red, 31% green and 37% blue. The CMYK color codes, used in printers, are C:12 M:17 Y:0 K:56. In the HSV/HSB scale, #645E71 has a hue of 259°, 17% saturation and a brightness value of 44%.
Details of other color codes including equivalent web safe and HTML & CSS colors are given in the table below. Also listed are the closest Pantone® (PMS) and RAL colors.