The hex color #3f15fc is a dark color. The web-safe version is Hex
#3300FF. A complementary color is
#C0EA03. The grayscale version is
#707070. A 20% lighter version of the original color is
#7248FF, and Hex
#0C00C9 is the 20% darker color. If the color is saturated by 10%, you get
#3A0CFF. If the color is desaturated by 10%, the color
#441EEE is obtained.