The hex color #2f28f3 is a dark color. The web-safe version is Hex
#3333FF. A complementary color is
#D0D70C. The grayscale version is
#6E6E6E. A 20% lighter version of the original color is
#625BFF, and Hex
#0000C0 is the 20% darker color. If the color is saturated by 10%, you get
#2921FF. If the color is desaturated by 10%, the color
#352FE6 is obtained.