The hex color #2f34b7 is a dark color. The web-safe version is Hex
#3333CC. A complementary color is
#D0CB48. The grayscale version is
#5E5E5E. A 20% lighter version of the original color is
#6267EA, and Hex
#000184 is the 20% darker color. If the color is saturated by 10%, you get
#2A30C0. If the color is desaturated by 10%, the color
#3438AE is obtained.