The hex color #041f4c is a dark color. The web-safe version is Hex
#003333. A complementary color is
#FBE0B3. The grayscale version is
#252525. A 20% lighter version of the original color is
#37527F, and Hex
#000019 is the 20% darker color. If the color is saturated by 10%, you get
#011E50. If the color is desaturated by 10%, the color
#072048 is obtained.