The hex color #0d30fc is a dark color. The web-safe version is Hex
#0033FF. A complementary color is
#F2CF03. The grayscale version is
#686868. A 20% lighter version of the original color is
#4063FF, and Hex
#0000C9 is the 20% darker color. If the color is saturated by 10%, you get
#042AFF. If the color is desaturated by 10%, the color
#1636ED is obtained.