The hex color #1a78f0 is a dark color. The web-safe version is Hex
#3366FF. A complementary color is
#E5870F. The grayscale version is
#818181. A 20% lighter version of the original color is
#4DABFF, and Hex
#0045BD is the 20% darker color. If the color is saturated by 10%, you get
#1077FB. If the color is desaturated by 10%, the color
#2479E5 is obtained.