The hex color #1d50b0 is a dark color. The web-safe version is Hex
#336699. A complementary color is
#E2AF4F. The grayscale version is
#5F5F5F. A 20% lighter version of the original color is
#5083E3, and Hex
#001D7D is the 20% darker color. If the color is saturated by 10%, you get
#164FB8. If the color is desaturated by 10%, the color
#2452A8 is obtained.