The hex color #034e56 is a dark color. The web-safe version is Hex
#006666. A complementary color is
#FCB1A9. The grayscale version is
#383838. A 20% lighter version of the original color is
#368189, and Hex
#001B23 is the 20% darker color. If the color is saturated by 10%, you get
#005059. If the color is desaturated by 10%, the color
#084C53 is obtained.