The hex color #2c29e3 is a dark color. The web-safe version is Hex
#3333CC. A complementary color is
#D3D61C. The grayscale version is
#686868. A 20% lighter version of the original color is
#5F5CFF, and Hex
#0000B0 is the 20% darker color. If the color is saturated by 10%, you get
#2623EF. If the color is desaturated by 10%, the color
#322FD7 is obtained.