The hex color #2a40a5 is a dark color. The web-safe version is Hex
#333399. A complementary color is
#D5BF5A. The grayscale version is
#5A5A5A. A 20% lighter version of the original color is
#5D73D8, and Hex
#000D72 is the 20% darker color. If the color is saturated by 10%, you get
#253DAC. If the color is desaturated by 10%, the color
#2F439E is obtained.