The hex color #2d357c is a dark color. The web-safe version is Hex
#333366. A complementary color is
#D2CA83. The grayscale version is
#4A4A4A. A 20% lighter version of the original color is
#6068AF, and Hex
#000249 is the 20% darker color. If the color is saturated by 10%, you get
#2A3381. If the color is desaturated by 10%, the color
#303777 is obtained.