The hex color #1a78b0 is a dark color. The web-safe version is Hex
#336699. A complementary color is
#E5874F. The grayscale version is
#6B6B6B. A 20% lighter version of the original color is
#4DABE3, and Hex
#00457D is the 20% darker color. If the color is saturated by 10%, you get
#1279B7. If the color is desaturated by 10%, the color
#2277A9 is obtained.