The hex color #347c5c is a dark color. The web-safe version is Hex
#336666. A complementary color is
#CB83A3. The grayscale version is
#595959. A 20% lighter version of the original color is
#67AF8F, and Hex
#014929 is the 20% darker color. If the color is saturated by 10%, you get
#307F5C. If the color is desaturated by 10%, the color
#38795C is obtained.