The hex color #490CD2 is a dark color. The web-safe version is Hex
#3300CC. A complementary color is
#B6F32D. The grayscale version is
#626262. A 20% lighter version of the original color is
#7C3FFF, and Hex
#16009F is the 20% darker color. If the color is saturated by 10%, you get
#4603DD. If the color is desaturated by 10%, the color
#4C15C7 is obtained.