The hex color #1618b1 is a dark color. The web-safe version is Hex
#000099. A complementary color is
#E9E74E. The grayscale version is
#4A4A4A. A 20% lighter version of the original color is
#494BE4, and Hex
#00007E is the 20% darker color. If the color is saturated by 10%, you get
#1113BB. If the color is desaturated by 10%, the color
#1B1DA7 is obtained.