The hex color #1b673c is a dark color. The web-safe version is Hex
#336633. A complementary color is
#E498C3. The grayscale version is
#3F3F3F. A 20% lighter version of the original color is
#4E9A6F, and Hex
#003409 is the 20% darker color. If the color is saturated by 10%, you get
#176B3C. If the color is desaturated by 10%, the color
#1F633C is obtained.