The hex color #1951a9 is a dark color. The web-safe version is Hex
#006699. A complementary color is
#E6AE56. The grayscale version is
#5C5C5C. A 20% lighter version of the original color is
#4C84DC, and Hex
#001E76 is the 20% darker color. If the color is saturated by 10%, you get
#1250B1. If the color is desaturated by 10%, the color
#2052A1 is obtained.