The hex color #9f90fe is a light color. The web-safe version is Hex
#9999FF. A complementary color is
#606F01. The grayscale version is
#BABABA. A 20% lighter version of the original color is
#D2C3FF, and Hex
#6C5DCB is the 20% darker color. If the color is saturated by 10%, you get
#9C8CFF. If the color is desaturated by 10%, the color
#A294F7 is obtained.