The hex color #2c3db8 is a dark color. The web-safe version is Hex
#3333CC. A complementary color is
#D3C247. The grayscale version is
#606060. A 20% lighter version of the original color is
#5F70EB, and Hex
#000A85 is the 20% darker color. If the color is saturated by 10%, you get
#2739C1. If the color is desaturated by 10%, the color
#3141AF is obtained.