The hex color #8648cc is a dark color. The web-safe version is Hex
#9933CC. A complementary color is
#79B733. The grayscale version is
#898989. A 20% lighter version of the original color is
#B97BFF, and Hex
#531599 is the 20% darker color. If the color is saturated by 10%, you get
#8642D3. If the color is desaturated by 10%, the color
#864EC5 is obtained.