The hex color #545d18 is a dark color. The web-safe version is Hex
#666600. A complementary color is
#ABA2E7. The grayscale version is
#434343. A 20% lighter version of the original color is
#87904B, and Hex
#212A00 is the 20% darker color. If the color is saturated by 10%, you get
#566014. If the color is desaturated by 10%, the color
#525A1C is obtained.