The hex color #4f73f3 is a dark color. The web-safe version is Hex
#6666FF. A complementary color is
#B08C0C. The grayscale version is
#929292. A 20% lighter version of the original color is
#82A6FF, and Hex
#1C40C0 is the 20% darker color. If the color is saturated by 10%, you get
#4870FD. If the color is desaturated by 10%, the color
#5676E9 is obtained.