The hex color #4d25a3 is a dark color. The web-safe version is Hex
#663399. A complementary color is
#B2DA5C. The grayscale version is
#5C5C5C. A 20% lighter version of the original color is
#8058D6, and Hex
#1A0070 is the 20% darker color. If the color is saturated by 10%, you get
#4B1FAA. If the color is desaturated by 10%, the color
#4F2B9C is obtained.