The hex color #0f20a3 is a dark color. The web-safe version is Hex
#003399. A complementary color is
#F0DF5C. The grayscale version is
#464646. A 20% lighter version of the original color is
#4253D6, and Hex
#000070 is the 20% darker color. If the color is saturated by 10%, you get
#0A1CAC. If the color is desaturated by 10%, the color
#15249A is obtained.