The hex color #2d33a8 is a dark color. The web-safe version is Hex
#333399. A complementary color is
#D2CC57. The grayscale version is
#585858. A 20% lighter version of the original color is
#6066DB, and Hex
#000075 is the 20% darker color. If the color is saturated by 10%, you get
#292FB0. If the color is desaturated by 10%, the color
#3137A0 is obtained.