The hex color #4fc8fc is a light color. The web-safe version is Hex
#66CCFF. A complementary color is
#B03703. The grayscale version is
#B1B1B1. A 20% lighter version of the original color is
#82FBFF, and Hex
#1C95C9 is the 20% darker color. If the color is saturated by 10%, you get
#45CAFF. If the color is desaturated by 10%, the color
#59C6F5 is obtained.