The hex color #a90dde is a dark color. The web-safe version is Hex
#9900CC. A complementary color is
#56F221. The grayscale version is
#878787. A 20% lighter version of the original color is
#DC40FF, and Hex
#7600AB is the 20% darker color. If the color is saturated by 10%, you get
#AC01E7. If the color is desaturated by 10%, the color
#A619D5 is obtained.