The hex color #573ec4 is a dark color. The web-safe version is Hex
#6633CC. A complementary color is
#A8C13B. The grayscale version is
#737373. A 20% lighter version of the original color is
#8A71F7, and Hex
#240B91 is the 20% darker color. If the color is saturated by 10%, you get
#5439CC. If the color is desaturated by 10%, the color
#5A43BC is obtained.