The hex color #3e89cf is a dark color. The web-safe version is Hex
#3399CC. A complementary color is
#C17630. The grayscale version is
#878787. A 20% lighter version of the original color is
#71BCFF, and Hex
#0B569C is the 20% darker color. If the color is saturated by 10%, you get
#3789D6. If the color is desaturated by 10%, the color
#4589C8 is obtained.