The hex color #104a3b is a dark color. The web-safe version is Hex
#003333. A complementary color is
#EFB5C4. The grayscale version is
#323232. A 20% lighter version of the original color is
#437D6E, and Hex
#001708 is the 20% darker color. If the color is saturated by 10%, you get
#0D4C3C. If the color is desaturated by 10%, the color
#13483A is obtained.