The hex color #10c3e7 is a light color. The web-safe version is Hex
#00CCFF. A complementary color is
#EF3C18. The grayscale version is
#939393. A 20% lighter version of the original color is
#43F6FF, and Hex
#0090B4 is the 20% darker color. If the color is saturated by 10%, you get
#03C8EF. If the color is desaturated by 10%, the color
#1DBEDF is obtained.