The hex color #8f15d1 is a dark color. The web-safe version is Hex
#9900CC. A complementary color is
#70EA2E. The grayscale version is
#7C7C7C. A 20% lighter version of the original color is
#C248FF, and Hex
#5C009E is the 20% darker color. If the color is saturated by 10%, you get
#910BD9. If the color is desaturated by 10%, the color
#8D1FC9 is obtained.