The hex color #4fb1fe is a light color. The web-safe version is Hex
#6699FF. A complementary color is
#B04E01. The grayscale version is
#AAAAAA. A 20% lighter version of the original color is
#82E4FF, and Hex
#1C7ECB is the 20% darker color. If the color is saturated by 10%, you get
#46B2FF. If the color is desaturated by 10%, the color
#58B0F6 is obtained.