The hex color #a37cee is a light color. The web-safe version is Hex
#9966FF. A complementary color is
#5C8311. The grayscale version is
#AFAFAF. A 20% lighter version of the original color is
#D6AFFF, and Hex
#7049BB is the 20% darker color. If the color is saturated by 10%, you get
#A277F4. If the color is desaturated by 10%, the color
#A481E8 is obtained.