The hex color #372cdc is a dark color. The web-safe version is Hex
#3333CC. A complementary color is
#C8D323. The grayscale version is
#6A6A6A. A 20% lighter version of the original color is
#6A5FFF, and Hex
#0400A9 is the 20% darker color. If the color is saturated by 10%, you get
#3226E7. If the color is desaturated by 10%, the color
#3C32D1 is obtained.