The hex color #4b3c5c is a dark color. The web-safe version is Hex
#333366. A complementary color is
#B4C3A3. The grayscale version is
#4C4C4C. A 20% lighter version of the original color is
#7E6F8F, and Hex
#180929 is the 20% darker color. If the color is saturated by 10%, you get
#4B3A5E. If the color is desaturated by 10%, the color
#4B3E5A is obtained.