The hex color #3d766f is a dark color. The web-safe version is Hex
#336666. A complementary color is
#C28990. The grayscale version is
#616161. A 20% lighter version of the original color is
#70A9A2, and Hex
#0A433C is the 20% darker color. If the color is saturated by 10%, you get
#397870. If the color is desaturated by 10%, the color
#41746E is obtained.