The hex color #1e1f3f is a dark color. The web-safe version is Hex
#333333. A complementary color is
#E1E0C0. The grayscale version is
#292929. A 20% lighter version of the original color is
#515272, and Hex
#00000C is the 20% darker color. If the color is saturated by 10%, you get
#1D1E41. If the color is desaturated by 10%, the color
#1F203D is obtained.