The hex color #1c53d0 is a dark color. The web-safe version is Hex
#3366CC. A complementary color is
#E3AC2F. The grayscale version is
#6A6A6A. A 20% lighter version of the original color is
#4F86FF, and Hex
#00209D is the 20% darker color. If the color is saturated by 10%, you get
#1451DA. If the color is desaturated by 10%, the color
#2455C6 is obtained.