The hex color #1d1f29 is a dark color. The web-safe version is Hex
#333333. A complementary color is
#E2E0D6. The grayscale version is
#222222. A 20% lighter version of the original color is
#50525C, and Hex
#000000 is the 20% darker color. If the color is saturated by 10%, you get
#1D1F2A. If the color is desaturated by 10%, the color
#1D1F28 is obtained.