The hex color #1d56c8 is a dark color. The web-safe version is Hex
#3366CC. A complementary color is
#E2A937. The grayscale version is
#696969. A 20% lighter version of the original color is
#5089FB, and Hex
#002395 is the 20% darker color. If the color is saturated by 10%, you get
#1554D2. If the color is desaturated by 10%, the color
#2558BF is obtained.