The hex color #2a1d3f is a dark color. The web-safe version is Hex
#333333. A complementary color is
#D5E2C0. The grayscale version is
#2D2D2D. A 20% lighter version of the original color is
#5D5072, and Hex
#00000C is the 20% darker color. If the color is saturated by 10%, you get
#2A1B41. If the color is desaturated by 10%, the color
#2A1F3D is obtained.