The hex color #2f28d1 is a dark color. The web-safe version is Hex
#3333CC. A complementary color is
#D0D72E. The grayscale version is
#636363. A 20% lighter version of the original color is
#625BFF, and Hex
#00009E is the 20% darker color. If the color is saturated by 10%, you get
#2A22DC. If the color is desaturated by 10%, the color
#342EC6 is obtained.