The hex color #450c20 is a dark color. The web-safe version is Hex
#330033. A complementary color is
#BAF3DF. The grayscale version is
#262626. A 20% lighter version of the original color is
#783F53, and Hex
#120000 is the 20% darker color. If the color is saturated by 10%, you get
#48091F. If the color is desaturated by 10%, the color
#420F21 is obtained.