The hex color #4b15cc is a dark color. The web-safe version is Hex
#3300CC. A complementary color is
#B4EA33. The grayscale version is
#646464. A 20% lighter version of the original color is
#7E48FF, and Hex
#180099 is the 20% darker color. If the color is saturated by 10%, you get
#490DD6. If the color is desaturated by 10%, the color
#4E1DC2 is obtained.