The hex color #57a2cf is a light color. The web-safe version is Hex
#6699CC. A complementary color is
#A85D30. The grayscale version is
#989898. A 20% lighter version of the original color is
#8AD5FF, and Hex
#246F9C is the 20% darker color. If the color is saturated by 10%, you get
#51A3D5. If the color is desaturated by 10%, the color
#5EA1CA is obtained.