The hex color #277c46 is a dark color. The web-safe version is Hex
#336633. A complementary color is
#D883B9. The grayscale version is
#4E4E4E. A 20% lighter version of the original color is
#5AAF79, and Hex
#004913 is the 20% darker color. If the color is saturated by 10%, you get
#238145. If the color is desaturated by 10%, the color
#2B7747 is obtained.