The hex color #11a3dc is a dark color. The web-safe version is Hex
#0099CC. A complementary color is
#EE5C23. The grayscale version is
#858585. A 20% lighter version of the original color is
#44D6FF, and Hex
#0070A9 is the 20% darker color. If the color is saturated by 10%, you get
#05A6E5. If the color is desaturated by 10%, the color
#1DA0D3 is obtained.