The hex color #1E73C7 is a dark color. The web-safe version is Hex
#3366CC. A complementary color is
#E18C38. The grayscale version is
#737373. A 20% lighter version of the original color is
#51A6FA, and Hex
#004094 is the 20% darker color. If the color is saturated by 10%, you get
#1673CF. If the color is desaturated by 10%, the color
#2673BF is obtained.