The hex color #08283c is a dark color. The web-safe version is Hex
#003333. A complementary color is
#F7D7C3. The grayscale version is
#242424. A 20% lighter version of the original color is
#3B5B6F, and Hex
#000009 is the 20% darker color. If the color is saturated by 10%, you get
#05283E. If the color is desaturated by 10%, the color
#0B283A is obtained.