The hex color #1b2eee is a dark color. The web-safe version is Hex
#3333FF. A complementary color is
#E4D111. The grayscale version is
#686868. A 20% lighter version of the original color is
#4E61FF, and Hex
#0000BB is the 20% darker color. If the color is saturated by 10%, you get
#1328FB. If the color is desaturated by 10%, the color
#2334E1 is obtained.