The hex color #3c1d3a is a dark color. The web-safe version is Hex
#333333. A complementary color is
#C3E2C5. The grayscale version is
#313131. A 20% lighter version of the original color is
#6F506D, and Hex
#090007 is the 20% darker color. If the color is saturated by 10%, you get
#3D1B3B. If the color is desaturated by 10%, the color
#3B1F39 is obtained.