The hex color #7172cc is a dark color. The web-safe version is Hex
#6666CC. A complementary color is
#8E8D33. The grayscale version is
#909090. A 20% lighter version of the original color is
#A4A5FF, and Hex
#3E3F99 is the 20% darker color. If the color is saturated by 10%, you get
#6E6FD2. If the color is desaturated by 10%, the color
#7475C6 is obtained.