The hex color #10cecf is a light color. The web-safe version is Hex
#00CCCC. A complementary color is
#EF3130. The grayscale version is
#8F8F8F. A 20% lighter version of the original color is
#43FFFF, and Hex
#009B9C is the 20% darker color. If the color is saturated by 10%, you get
#03D4D5. If the color is desaturated by 10%, the color
#1DC8C9 is obtained.