The hex color #233cb7 is a dark color. The web-safe version is Hex
#3333CC. A complementary color is
#DCC348. The grayscale version is
#5D5D5D. A 20% lighter version of the original color is
#566FEA, and Hex
#000984 is the 20% darker color. If the color is saturated by 10%, you get
#1D39C0. If the color is desaturated by 10%, the color
#293FAE is obtained.