The hex color #286d68 is a dark color. The web-safe version is Hex
#336666. A complementary color is
#D79297. The grayscale version is
#545454. A 20% lighter version of the original color is
#5BA09B, and Hex
#003A35 is the 20% darker color. If the color is saturated by 10%, you get
#246F6A. If the color is desaturated by 10%, the color
#2C6B66 is obtained.