The hex color #051f3c is a dark color. The web-safe version is Hex
#003333. A complementary color is
#FAE0C3. The grayscale version is
#202020. A 20% lighter version of the original color is
#38526F, and Hex
#000009 is the 20% darker color. If the color is saturated by 10%, you get
#021F3F. If the color is desaturated by 10%, the color
#081F39 is obtained.