The hex color #4b10cf is a dark color. The web-safe version is Hex
#3300CC. A complementary color is
#B4EF30. The grayscale version is
#636363. A 20% lighter version of the original color is
#7E43FF, and Hex
#18009C is the 20% darker color. If the color is saturated by 10%, you get
#4908DA. If the color is desaturated by 10%, the color
#4D18C4 is obtained.