The hex color #1a75ef is a dark color. The web-safe version is Hex
#3366FF. A complementary color is
#E58A10. The grayscale version is
#7F7F7F. A 20% lighter version of the original color is
#4DA8FF, and Hex
#0042BC is the 20% darker color. If the color is saturated by 10%, you get
#1074FA. If the color is desaturated by 10%, the color
#2476E4 is obtained.