The hex color #2f368d is a dark color. The web-safe version is Hex
#333399. A complementary color is
#D0C972. The grayscale version is
#515151. A 20% lighter version of the original color is
#6269C0, and Hex
#00035A is the 20% darker color. If the color is saturated by 10%, you get
#2C3393. If the color is desaturated by 10%, the color
#323987 is obtained.