The hex color #041b4c is a dark color. The web-safe version is Hex
#003333. A complementary color is
#FBE4B3. The grayscale version is
#242424. A 20% lighter version of the original color is
#374E7F, and Hex
#000019 is the 20% darker color. If the color is saturated by 10%, you get
#011A50. If the color is desaturated by 10%, the color
#071C48 is obtained.