The hex color #490DF2 is a dark color. The web-safe version is Hex
#3300FF. A complementary color is
#B6F20D. The grayscale version is
#6D6D6D. A 20% lighter version of the original color is
#7C40FF, and Hex
#1600BF is the 20% darker color. If the color is saturated by 10%, you get
#4503FF. If the color is desaturated by 10%, the color
#4D17E5 is obtained.