The hex color #2c29f3 is a dark color. The web-safe version is Hex
#3333FF. A complementary color is
#D3D60C. The grayscale version is
#6D6D6D. A 20% lighter version of the original color is
#5F5CFF, and Hex
#0000C0 is the 20% darker color. If the color is saturated by 10%, you get
#2522FF. If the color is desaturated by 10%, the color
#3330E6 is obtained.