The hex color #1a53b7 is a dark color. The web-safe version is Hex
#3366CC. A complementary color is
#E5AC48. The grayscale version is
#616161. A 20% lighter version of the original color is
#4D86EA, and Hex
#002084 is the 20% darker color. If the color is saturated by 10%, you get
#1352C0. If the color is desaturated by 10%, the color
#2154AE is obtained.