The hex color #57a6ec is a light color. The web-safe version is Hex
#6699FF. A complementary color is
#A85913. The grayscale version is
#A3A3A3. A 20% lighter version of the original color is
#8AD9FF, and Hex
#2473B9 is the 20% darker color. If the color is saturated by 10%, you get
#4FA6F3. If the color is desaturated by 10%, the color
#5FA6E5 is obtained.