The hex color #4b187c is a dark color. The web-safe version is Hex
#330066. A complementary color is
#B4E783. The grayscale version is
#4A4A4A. A 20% lighter version of the original color is
#7E4BAF, and Hex
#180049 is the 20% darker color. If the color is saturated by 10%, you get
#4B1381. If the color is desaturated by 10%, the color
#4B1D77 is obtained.