The hex color #402d3c is a dark color. The web-safe version is Hex
#333333. A complementary color is
#BFD2C3. The grayscale version is
#383838. A 20% lighter version of the original color is
#73606F, and Hex
#0D0009 is the 20% darker color. If the color is saturated by 10%, you get
#412C3C. If the color is desaturated by 10%, the color
#3F2E3C is obtained.