The hex color #51079c is a dark color. The web-safe version is Hex
#660099. A complementary color is
#AEF863. The grayscale version is
#515151. A 20% lighter version of the original color is
#843ACF, and Hex
#1E0069 is the 20% darker color. If the color is saturated by 10%, you get
#5100A3. If the color is desaturated by 10%, the color
#510E95 is obtained.