The hex color #1b54cd is a dark color. The web-safe version is Hex
#3366CC. A complementary color is
#E4AB32. The grayscale version is
#696969. A 20% lighter version of the original color is
#4E87FF, and Hex
#00219A is the 20% darker color. If the color is saturated by 10%, you get
#1352D7. If the color is desaturated by 10%, the color
#2356C3 is obtained.