The hex color #4c00b0 is a dark color. The web-safe version is Hex
#330099. A complementary color is
#B3FF4F. The grayscale version is
#545454. A 20% lighter version of the original color is
#7F33E3, and Hex
#19007D is the 20% darker color. If the color is saturated by 10%, you get
#4B00B9. If the color is desaturated by 10%, the color
#4D08A7 is obtained.