The hex color #1a1d1a is a dark color. The web-safe version is Hex
#333333. A complementary color is
#E5E2E5. The grayscale version is
#1B1B1B. A 20% lighter version of the original color is
#4D504D, and Hex
#000000 is the 20% darker color. If the color is saturated by 10%, you get
#1A1D1A. If the color is desaturated by 10%, the color
#1A1D1A is obtained.