The hex color #0c2a5c is a dark color. The web-safe version is Hex
#003366. A complementary color is
#F3D5A3. The grayscale version is
#313131. A 20% lighter version of the original color is
#3F5D8F, and Hex
#000029 is the 20% darker color. If the color is saturated by 10%, you get
#082960. If the color is desaturated by 10%, the color
#102B58 is obtained.