The hex color #490e10 is a dark color. The web-safe version is Hex
#330000. A complementary color is
#B6F1EF. The grayscale version is
#222222. A 20% lighter version of the original color is
#7C4143, and Hex
#160000 is the 20% darker color. If the color is saturated by 10%, you get
#4D0C0E. If the color is desaturated by 10%, the color
#451012 is obtained.