The hex color #10c9dc is a light color. The web-safe version is Hex
#00CCCC. A complementary color is
#EF3623. The grayscale version is
#929292. A 20% lighter version of the original color is
#43FCFF, and Hex
#0096A9 is the 20% darker color. If the color is saturated by 10%, you get
#03CFE3. If the color is desaturated by 10%, the color
#1DC3D5 is obtained.