The hex color #2b39d2 is a dark color. The web-safe version is Hex
#3333CC. A complementary color is
#D4C62D. The grayscale version is
#676767. A 20% lighter version of the original color is
#5E6CFF, and Hex
#00069F is the 20% darker color. If the color is saturated by 10%, you get
#2534DD. If the color is desaturated by 10%, the color
#313EC7 is obtained.