The hex color #613ccc is a dark color. The web-safe version is Hex
#6633CC. A complementary color is
#9EC333. The grayscale version is
#787878. A 20% lighter version of the original color is
#946FFF, and Hex
#2E0999 is the 20% darker color. If the color is saturated by 10%, you get
#5F36D4. If the color is desaturated by 10%, the color
#6342C4 is obtained.