The hex color #0c40ea is a dark color. The web-safe version is Hex
#0033FF. A complementary color is
#F3BF15. The grayscale version is
#676767. A 20% lighter version of the original color is
#3F73FF, and Hex
#000DB7 is the 20% darker color. If the color is saturated by 10%, you get
#033CF7. If the color is desaturated by 10%, the color
#1544DD is obtained.