The hex color #2b2bef is a dark color. The web-safe version is Hex
#3333FF. A complementary color is
#D4D410. The grayscale version is
#6C6C6C. A 20% lighter version of the original color is
#5E5EFF, and Hex
#0000BC is the 20% darker color. If the color is saturated by 10%, you get
#2424FC. If the color is desaturated by 10%, the color
#3232E2 is obtained.