The hex color #000256 is a dark color. The web-safe version is Hex
#000066. A complementary color is
#FFFDA9. The grayscale version is
#1D1D1D. A 20% lighter version of the original color is
#333589, and Hex
#000023 is the 20% darker color. If the color is saturated by 10%, you get
#00005C. If the color is desaturated by 10%, the color
#030550 is obtained.