The hex color #0f9b8c is a dark color. The web-safe version is Hex
#009999. A complementary color is
#F06473. The grayscale version is
#676767. A 20% lighter version of the original color is
#42CEBF, and Hex
#006859 is the 20% darker color. If the color is saturated by 10%, you get
#06A090. If the color is desaturated by 10%, the color
#189688 is obtained.