The hex color #903ad5 is a dark color. The web-safe version is Hex
#9933CC. A complementary color is
#6FC52A. The grayscale version is
#8A8A8A. A 20% lighter version of the original color is
#C36DFF, and Hex
#5D07A2 is the 20% darker color. If the color is saturated by 10%, you get
#9132DC. If the color is desaturated by 10%, the color
#8F42CE is obtained.