The hex color #53d8da is a light color. The web-safe version is Hex
#66CCCC. A complementary color is
#AC2725. The grayscale version is
#ACACAC. A 20% lighter version of the original color is
#86FFFF, and Hex
#20A5A7 is the 20% darker color. If the color is saturated by 10%, you get
#4ADCDF. If the color is desaturated by 10%, the color
#5CD4D5 is obtained.