The hex color #3e2d3f is a dark color. The web-safe version is Hex
#333333. A complementary color is
#C1D2C0. The grayscale version is
#393939. A 20% lighter version of the original color is
#716072, and Hex
#0B000C is the 20% darker color. If the color is saturated by 10%, you get
#3F2C40. If the color is desaturated by 10%, the color
#3D2E3E is obtained.