The hex color #53f5df is a light color. The web-safe version is Hex
#66FFCC. A complementary color is
#AC0A20. The grayscale version is
#B8B8B8. A 20% lighter version of the original color is
#86FFFF, and Hex
#20C2AC is the 20% darker color. If the color is saturated by 10%, you get
#49FBE3. If the color is desaturated by 10%, the color
#5DEFDB is obtained.