The hex color #1dfdf5 is a light color. The web-safe version is Hex
#33FFFF. A complementary color is
#E2020A. The grayscale version is
#B0B0B0. A 20% lighter version of the original color is
#50FFFF, and Hex
#00CAC2 is the 20% darker color. If the color is saturated by 10%, you get
#0EFFFC. If the color is desaturated by 10%, the color
#2CF5EE is obtained.