The hex color #400e5c is a dark color. The web-safe version is Hex
#330066. A complementary color is
#BFF1A3. The grayscale version is
#393939. A 20% lighter version of the original color is
#73418F, and Hex
#0D0029 is the 20% darker color. If the color is saturated by 10%, you get
#410A60. If the color is desaturated by 10%, the color
#3F1258 is obtained.