The hex color #236DF3 is a dark color. The web-safe version is Hex
#3366FF. A complementary color is
#DC920C. The grayscale version is
#818181. A 20% lighter version of the original color is
#56A0FF, and Hex
#003AC0 is the 20% darker color. If the color is saturated by 10%, you get
#1A6BFE. If the color is desaturated by 10%, the color
#2C6FE8 is obtained.