The hex color #38313c is a dark color. The web-safe version is Hex
#333333. A complementary color is
#C7CEC3. The grayscale version is
#373737. A 20% lighter version of the original color is
#6B646F, and Hex
#050009 is the 20% darker color. If the color is saturated by 10%, you get
#38303D. If the color is desaturated by 10%, the color
#38323C is obtained.