The hex color #000270 is a dark color. The web-safe version is Hex
#000066. A complementary color is
#FFFD8F. The grayscale version is
#262626. A 20% lighter version of the original color is
#3335A3, and Hex
#00003D is the 20% darker color. If the color is saturated by 10%, you get
#000077. If the color is desaturated by 10%, the color
#040669 is obtained.