The hex color #990bcd is a dark color. The web-safe version is Hex
#9900CC. A complementary color is
#66F432. The grayscale version is
#7B7B7B. A 20% lighter version of the original color is
#CC3EFF, and Hex
#66009A is the 20% darker color. If the color is saturated by 10%, you get
#9C00D5. If the color is desaturated by 10%, the color
#9616C5 is obtained.