The hex color #00018b is a dark color. The web-safe version is Hex
#000099. A complementary color is
#FFFE74. The grayscale version is
#2F2F2F. A 20% lighter version of the original color is
#3334BE, and Hex
#000058 is the 20% darker color. If the color is saturated by 10%, you get
#000094. If the color is desaturated by 10%, the color
#050682 is obtained.