The hex color #0129b3 is a dark color. The web-safe version is Hex
#0033CC. A complementary color is
#FED64C. The grayscale version is
#4A4A4A. A 20% lighter version of the original color is
#345CE6, and Hex
#000080 is the 20% darker color. If the color is saturated by 10%, you get
#0026BE. If the color is desaturated by 10%, the color
#082CA8 is obtained.