The hex color #57f2dd is a light color. The web-safe version is Hex
#66FFCC. A complementary color is
#A80D22. The grayscale version is
#B7B7B7. A 20% lighter version of the original color is
#8AFFFF, and Hex
#24BFAA is the 20% darker color. If the color is saturated by 10%, you get
#4DF8E1. If the color is desaturated by 10%, the color
#61ECD9 is obtained.