The hex color #7a403c is a dark color. The web-safe version is Hex
#663333. A complementary color is
#85BFC3. The grayscale version is
#525252. A 20% lighter version of the original color is
#AD736F, and Hex
#470D09 is the 20% darker color. If the color is saturated by 10%, you get
#7E3E3A. If the color is desaturated by 10%, the color
#76423E is obtained.