The hex color #13439c is a dark color. The web-safe version is Hex
#003399. A complementary color is
#ECBC63. The grayscale version is
#515151. A 20% lighter version of the original color is
#4676CF, and Hex
#001069 is the 20% darker color. If the color is saturated by 10%, you get
#0D42A4. If the color is desaturated by 10%, the color
#194494 is obtained.