The hex color #5e7c6c is a dark color. The web-safe version is Hex
#666666. A complementary color is
#A18393. The grayscale version is
#6D6D6D. A 20% lighter version of the original color is
#91AF9F, and Hex
#2B4939 is the 20% darker color. If the color is saturated by 10%, you get
#5D7E6C. If the color is desaturated by 10%, the color
#5F7A6C is obtained.