The hex color #033b31 is a dark color. The web-safe version is Hex
#003333. A complementary color is
#FCC4CE. The grayscale version is
#252525. A 20% lighter version of the original color is
#366E64, and Hex
#000800 is the 20% darker color. If the color is saturated by 10%, you get
#003D32. If the color is desaturated by 10%, the color
#063930 is obtained.