The hex color #4dc7fc is a light color. The web-safe version is Hex
#66CCFF. A complementary color is
#B23803. The grayscale version is
#B0B0B0. A 20% lighter version of the original color is
#80FAFF, and Hex
#1A94C9 is the 20% darker color. If the color is saturated by 10%, you get
#43C9FF. If the color is desaturated by 10%, the color
#57C5F4 is obtained.