The hex color #2e1d37 is a dark color. The web-safe version is Hex
#333333. A complementary color is
#D1E2C8. The grayscale version is
#2B2B2B. A 20% lighter version of the original color is
#61506A, and Hex
#000004 is the 20% darker color. If the color is saturated by 10%, you get
#2E1C38. If the color is desaturated by 10%, the color
#2E1E36 is obtained.