The hex color #1a73b5 is a dark color. The web-safe version is Hex
#3366CC. A complementary color is
#E58C4A. The grayscale version is
#6B6B6B. A 20% lighter version of the original color is
#4DA6E8, and Hex
#004082 is the 20% darker color. If the color is saturated by 10%, you get
#1274BC. If the color is desaturated by 10%, the color
#2272AE is obtained.