The hex color #57c4fe is a light color. The web-safe version is Hex
#66CCFF. A complementary color is
#A83B01. The grayscale version is
#B3B3B3. A 20% lighter version of the original color is
#8AF7FF, and Hex
#2491CB is the 20% darker color. If the color is saturated by 10%, you get
#4EC6FF. If the color is desaturated by 10%, the color
#60C2F7 is obtained.