The hex color #262f3c is a dark color. The web-safe version is Hex
#333333. A complementary color is
#D9D0C3. The grayscale version is
#303030. A 20% lighter version of the original color is
#59626F, and Hex
#000009 is the 20% darker color. If the color is saturated by 10%, you get
#252F3D. If the color is desaturated by 10%, the color
#272F3B is obtained.