The hex color #137B2B is a dark color. The web-safe version is Hex
#006633. A complementary color is
#EC84D4. The grayscale version is
#3E3E3E. A 20% lighter version of the original color is
#46AE5E, and Hex
#004800 is the 20% darker color. If the color is saturated by 10%, you get
#0F8129. If the color is desaturated by 10%, the color
#17752D is obtained.