The hex color #4FC3E2 is a light color. The web-safe version is Hex
#66CCCC. A complementary color is
#B03C1D. The grayscale version is
#A7A7A7. A 20% lighter version of the original color is
#82F6FF, and Hex
#1C90AF is the 20% darker color. If the color is saturated by 10%, you get
#46C6E8. If the color is desaturated by 10%, the color
#58C0DC is obtained.