The hex color #1d26a3 is a dark color. The web-safe version is Hex
#333399. A complementary color is
#E2D95C. The grayscale version is
#4D4D4D. A 20% lighter version of the original color is
#5059D6, and Hex
#000070 is the 20% darker color. If the color is saturated by 10%, you get
#1822AC. If the color is desaturated by 10%, the color
#222A9A is obtained.