The hex color #1d03dd is a dark color. The web-safe version is Hex
#3300CC. A complementary color is
#E2FC22. The grayscale version is
#545454. A 20% lighter version of the original color is
#5036FF, and Hex
#0000AA is the 20% darker color. If the color is saturated by 10%, you get
#1700EB. If the color is desaturated by 10%, the color
#230BCF is obtained.