The hex color #2b274c is a dark color. The web-safe version is Hex
#333333. A complementary color is
#D4D8B3. The grayscale version is
#353535. A 20% lighter version of the original color is
#5E5A7F, and Hex
#000019 is the 20% darker color. If the color is saturated by 10%, you get
#2A264E. If the color is desaturated by 10%, the color
#2C284A is obtained.