The hex color #031BA3 is a dark color. The web-safe version is Hex
#003399. A complementary color is
#FCE45C. The grayscale version is
#404040. A 20% lighter version of the original color is
#364ED6, and Hex
#000070 is the 20% darker color. If the color is saturated by 10%, you get
#0017AD. If the color is desaturated by 10%, the color
#091F99 is obtained.