The hex color #06403c is a dark color. The web-safe version is Hex
#003333. A complementary color is
#F9BFC3. The grayscale version is
#2B2B2B. A 20% lighter version of the original color is
#39736F, and Hex
#000D09 is the 20% darker color. If the color is saturated by 10%, you get
#02423E. If the color is desaturated by 10%, the color
#0A3E3A is obtained.