The hex color #2D4537 is a dark color. The web-safe version is Hex
#333333. A complementary color is
#D2BAC8. The grayscale version is
#383838. A 20% lighter version of the original color is
#60786A, and Hex
#001204 is the 20% darker color. If the color is saturated by 10%, you get
#2C4637. If the color is desaturated by 10%, the color
#2E4437 is obtained.