The hex color #2f286a is a dark color. The web-safe version is Hex
#333366. A complementary color is
#D0D795. The grayscale version is
#404040. A 20% lighter version of the original color is
#625B9D, and Hex
#000037 is the 20% darker color. If the color is saturated by 10%, you get
#2D266E. If the color is desaturated by 10%, the color
#312A66 is obtained.