The hex color #1d15cd is a dark color. The web-safe version is Hex
#3300CC. A complementary color is
#E2EA32. The grayscale version is
#555555. A 20% lighter version of the original color is
#5048FF, and Hex
#00009A is the 20% darker color. If the color is saturated by 10%, you get
#170FD9. If the color is desaturated by 10%, the color
#231BC1 is obtained.