The hex color #4f0fa6 is a dark color. The web-safe version is Hex
#660099. A complementary color is
#B0F059. The grayscale version is
#575757. A 20% lighter version of the original color is
#8242D9, and Hex
#1C0073 is the 20% darker color. If the color is saturated by 10%, you get
#4E08AE. If the color is desaturated by 10%, the color
#50169E is obtained.