The hex color #2c1a3e is a dark color. The web-safe version is Hex
#333333. A complementary color is
#D3E5C1. The grayscale version is
#2C2C2C. A 20% lighter version of the original color is
#5F4D71, and Hex
#00000B is the 20% darker color. If the color is saturated by 10%, you get
#2C1840. If the color is desaturated by 10%, the color
#2C1C3C is obtained.