The hex color #4f499c is a dark color. The web-safe version is Hex
#663399. A complementary color is
#B0B663. The grayscale version is
#676767. A 20% lighter version of the original color is
#827CCF, and Hex
#1C1669 is the 20% darker color. If the color is saturated by 10%, you get
#4D46A1. If the color is desaturated by 10%, the color
#514C97 is obtained.