The hex color #20132f is a dark color. The web-safe version is Hex
#330033. A complementary color is
#DFECD0. The grayscale version is
#212121. A 20% lighter version of the original color is
#534662, and Hex
#000000 is the 20% darker color. If the color is saturated by 10%, you get
#201230. If the color is desaturated by 10%, the color
#20142E is obtained.