The hex color #165d5c is a dark color. The web-safe version is Hex
#006666. A complementary color is
#E9A2A3. The grayscale version is
#454545. A 20% lighter version of the original color is
#49908F, and Hex
#002A29 is the 20% darker color. If the color is saturated by 10%, you get
#115F5E. If the color is desaturated by 10%, the color
#1B5B5A is obtained.