The hex color #1a3e1d is a dark color. The web-safe version is Hex
#333333. A complementary color is
#E5C1E2. The grayscale version is
#272727. A 20% lighter version of the original color is
#4D7150, and Hex
#000B00 is the 20% darker color. If the color is saturated by 10%, you get
#19401C. If the color is desaturated by 10%, the color
#1B3C1E is obtained.