The hex color #2b367f is a dark color. The web-safe version is Hex
#333366. A complementary color is
#D4C980. The grayscale version is
#4B4B4B. A 20% lighter version of the original color is
#5E69B2, and Hex
#00034C is the 20% darker color. If the color is saturated by 10%, you get
#283484. If the color is desaturated by 10%, the color
#2E387A is obtained.