The hex color #1b49da is a dark color. The web-safe version is Hex
#3333CC. A complementary color is
#E4B625. The grayscale version is
#6A6A6A. A 20% lighter version of the original color is
#4E7CFF, and Hex
#0016A7 is the 20% darker color. If the color is saturated by 10%, you get
#1346E5. If the color is desaturated by 10%, the color
#234CCF is obtained.