The hex color #039e9f is a dark color. The web-safe version is Hex
#009999. A complementary color is
#FC6160. The grayscale version is
#6B6B6B. A 20% lighter version of the original color is
#36D1D2, and Hex
#006B6C is the 20% darker color. If the color is saturated by 10%, you get
#00A3A4. If the color is desaturated by 10%, the color
#0D999A is obtained.