The hex color #042885 is a dark color. The web-safe version is Hex
#003399. A complementary color is
#FBD77A. The grayscale version is
#3B3B3B. A 20% lighter version of the original color is
#375BB8, and Hex
#000052 is the 20% darker color. If the color is saturated by 10%, you get
#00268C. If the color is desaturated by 10%, the color
#0A2A7E is obtained.