The hex color #034b81 is a dark color. The web-safe version is Hex
#003399. A complementary color is
#FCB47E. The grayscale version is
#454545. A 20% lighter version of the original color is
#367EB4, and Hex
#00184E is the 20% darker color. If the color is saturated by 10%, you get
#004C87. If the color is desaturated by 10%, the color
#0A4A7B is obtained.