The hex color #2f23b9 is a dark color. The web-safe version is Hex
#3333CC. A complementary color is
#D0DC46. The grayscale version is
#595959. A 20% lighter version of the original color is
#6256EC, and Hex
#000086 is the 20% darker color. If the color is saturated by 10%, you get
#2B1EC3. If the color is desaturated by 10%, the color
#3328AF is obtained.