The hex color #15716c is a dark color. The web-safe version is Hex
#006666. A complementary color is
#EA8E93. The grayscale version is
#515151. A 20% lighter version of the original color is
#48A49F, and Hex
#003E39 is the 20% darker color. If the color is saturated by 10%, you get
#0F746F. If the color is desaturated by 10%, the color
#1B6E69 is obtained.